Flora of North Dakota: Checklist
Version 2, 20190220
[Citation] Shipunov, A. Flora of North Dakota: Checklist. Version 2. Ed.: Kartesz, J., and Nishino, M. 2017—onwards. http://ashipunov.info/shipunov/fnddb2/index.htm
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| Family | Species | Counties | Sources | Extra info | |
|---|---|---|---|---|---|
| Nyctaginaceae | Abronia fragrans | , snowball sand verbena | MCKENZIE | 1, 29, 39, 43, 47 | Map |
| Malvaceae | Abutilon theophrasti | , velvetleaf | BARNES, CASS, DIVIDE, GRAND FORKS, MCKENZIE, RANSOM, RICHLAND, STUTSMAN, TRAILL. Introduced. | 1, 5, 5, 11, 24, 25, 26, 27, 29, 39, 40, 43, 47 | Map |
| Euphorbiaceae | Acalypha rhomboidea | , common threeseed mercury | BARNES, STUTSMAN | 1, 5, 11, 29, 39, 41, 43, 47 | Map |
| Euphorbiaceae | Acalypha virginica | , Virginia threeseed mercury | GRAND FORKS | 7, 41 | Map |
| Sapindaceae | Acer ginnala | , Amur maple | ROLETTE, SHERIDAN, WARD. Introduced. | 4, 7, 17, 29 | Map, Photo |
| Sapindaceae | Acer glabrum | , Rocky Mountain maple | SIOUX | 48 | Map |
| Sapindaceae | Acer negundo | , boxelder | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Sapindaceae | Acer saccharinum | , silver maple | BENSON, GRAND FORKS, RICHLAND | 3, 7, 18, 27, 29, 41, 45 | Map |
| Sapindaceae | Acer saccharum | , sugar maple | SARGENT | 25, 26, 27, 29, 34, 39, 43 | Map |
| Compositae | Achillea alpina | , Chinese yarrow | BOTTINEAU, CAVALIER, PEMBINA, ROLETTE | 3, 18, 39, 45, 47 | Map |
| Compositae | Achillea millefolium | , common yarrow | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Achillea sibirica | , Siberian yarrow | BOTTINEAU, CAVALIER, GRAND FORKS, PEMBINA, ROLETTE, WALSH | 4, 5, 7, 27, 28, 29, 30, 41, 42, 43 | Map, Photo, Photo |
| Gramineae | Achnatherum hymenoides | , Indian ricegrass | BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, PIERCE, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 24, 27, 29, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo |
| Gramineae | Achnatherum ×bloomeri | , Bloomer's ricegrass | BILLINGS | 5, 32, 39 | Map |
| Acoraceae | Acorus americanus | , sweetflag | BOTTINEAU, GRAND FORKS, MCHENRY, PIERCE, RANSOM, TOWNER. Introduced. | 1, 5, 5, 6, 7, 7, 15, 16, 27, 28, 29, 33, 34, 35, 39, 41, 43, 43, 47 | Map |
| Compositae | Acroptilon repens | , hardheads | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, MCHENRY, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, RAMSEY, RENVILLE, RICHLAND, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 5, 6, 8, 11, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 36, 37, 39, 40, 43, 47 | Map |
| Ranunculaceae | Actaea rubra | , red baneberry | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, WALSH, WARD, WELLS | 1, 3, 4, 5, 6, 7, 11, 13, 14, 17, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Aegilops cylindrica | , jointed goatgrass | GOLDEN VALLEY. Introduced. | 1, 29, 39, 40, 43 | Map |
| Orobanchaceae | Agalinis aspera | , tall false foxglove | BARNES, BENSON, BOTTINEAU, DICKEY, EDDY, EMMONS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 18, 19, 21, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 45 | Map, Photo |
| Orobanchaceae | Agalinis tenuifolia | , slenderleaf false foxglove | BARNES, BENSON, BOTTINEAU, CASS, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 11, 15, 16, 18, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 43, 45 | Map, Photo, Photo |
| Labiatae | Agastache foeniculum | , blue giant hyssop | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Ageratina altissima | , white snakeroot | CASS, GRAND FORKS, RANSOM, RICHLAND, SARGENT, TRAILL | 1, 6, 7, 25, 26, 27, 29, 39, 41, 43, 45, 47 | Map |
| Compositae | Agoseris glauca | , pale agoseris | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Agrimonia gryposepala | , tall hairy agrimony | CASS, CAVALIER, DUNN, LAMOURE, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, WALSH | 1, 4, 5, 7, 24, 25, 26, 29, 34, 35, 39, 41, 43, 45, 47 | Map, Photo |
| Rosaceae | Agrimonia striata | , roadside agrimony | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Agropyron cristatum | , crested wheatgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS. Introduced. | 1, 1, 2, 4, 5, 5, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 19, 19, 21, 24, 25, 26, 27, 28, 29, 29, 31, 32, 39, 40, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Agropyron fragile | , Siberian wheatgrass | ADAMS, BURLEIGH, SIOUX, SLOPE. Introduced. | 39 | Map |
| Caryophyllaceae | Agrostemma githago | , common corncockle | BARNES, BENSON, BOTTINEAU, CASS, GRAND FORKS, GRANT, MORTON, PEMBINA, RANSOM, RICHLAND, STUTSMAN, WARD, WILLIAMS. Introduced. | 1, 3, 5, 7, 11, 13, 25, 26, 27, 28, 29, 30, 39, 40, 43, 45, 47 | Map |
| Gramineae | Agrostis exarata | , spike bentgrass | DUNN | 5, 24, 34, 35, 39, 43 | Map |
| Gramineae | Agrostis hyemalis | , winter bentgrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 11, 15, 16, 18, 31, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Agrostis perennans | , upland bentgrass | BOTTINEAU, BURKE, GRAND FORKS, MOUNTRAIL | 1, 4, 13, 29, 39, 41, 43 | Map |
| Gramineae | Agrostis scabra | , rough bentgrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 2, 4, 5, 7, 8, 10, 13, 14, 17, 19, 21, 24, 25, 27, 28, 29, 30, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo |
| Gramineae | Agrostis stolonifera | , creeping bentgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 4, 5, 5, 6, 7, 7, 8, 10, 11, 13, 14, 15, 16, 19, 24, 25, 26, 27, 28, 29, 29, 30, 31, 32, 39, 42, 42, 43, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Malvaceae | Alcea rosea | , hollyhock | CASS, GRAND FORKS, PEMBINA, WARD. Introduced. | 4, 5, 7, 29, 39, 47 | Map |
| Alismataceae | Alisma gramineum | , narrowleaf water plantain | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 24, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo |
| Alismataceae | Alisma plantago-aquatica | , European water plantain | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 1, 3, 5, 6, 11, 12, 13, 15, 16, 24, 25, 31, 32, 42, 44, 45 | Map |
| Alismataceae | Alisma subcordatum | , American water plantain | BENSON, BILLINGS, BURKE, CAVALIER, DICKEY, EDDY, FOSTER, GRAND FORKS, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STEELE, WARD, WELLS | 1, 2, 4, 7, 8, 10, 14, 17, 18, 19, 21, 26, 27, 29, 30, 39, 41, 43, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Alismataceae | Alisma triviale | , northern water plantain | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 4, 8, 9, 19, 21, 28, 29, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Cruciferae | Alliaria petiolata | , garlic mustard | CASS. Introduced. | 1, 29, 39, 40, 43 | Map |
| Amaryllidaceae | Allium canadense | , meadow garlic | SARGENT, STUTSMAN | 5, 29, 34, 35, 39, 41, 43 | Map |
| Amaryllidaceae | Allium cernuum | , nodding onion | RANSOM | 41, 45 | Map |
| Amaryllidaceae | Allium stellatum | , autumn onion | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STEELE, STUTSMAN, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaryllidaceae | Allium textile | , textile onion | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaryllidaceae | Allium tricoccum | , ramp | BARNES, CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 6, 7, 7, 11, 14, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47 | Map |
| Compositae | Almutaster pauciflorus | , alkali marsh aster | BENSON, BILLINGS, BOTTINEAU, BURKE, DIVIDE, GOLDEN VALLEY, GRANT, MCKENZIE, MOUNTRAIL, OLIVER, SLOPE, WILLIAMS | 1, 3, 4, 5, 13, 15, 16, 18, 24, 27, 29, 32, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Betulaceae | Alnus incana | , gray alder | BENSON, CASS, CAVALIER, EDDY, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, WALSH, WELLS | 1, 3, 6, 7, 8, 15, 16, 18, 19, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47, 48 | Map |
| Gramineae | Alopecurus aequalis | , shortawn foxtail | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Alopecurus arundinaceus | , creeping meadow foxtail | ADAMS, BARNES, BURLEIGH, CASS, DICKEY, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, RAMSEY, RENVILLE, STEELE, TOWNER, TRAILL, WARD. Introduced. | 2, 4, 5, 11, 16, 21, 27, 29, 31, 39, 43, 43, 44 | Map, Photo, Photo, Photo, Photo |
| Gramineae | Alopecurus carolinianus | , Carolina foxtail | BARNES, BURKE, CAVALIER, DIVIDE, EMMONS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, WILLIAMS | 1, 4, 5, 7, 13, 15, 16, 24, 27, 29, 31, 39, 41, 43 | Map, Photo |
| Gramineae | Alopecurus geniculatus | , water foxtail | BENSON, BURKE, CASS, DIVIDE, EMMONS, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, SLOPE, STUTSMAN, WILLIAMS. Introduced. | 1, 3, 4, 5, 7, 13, 15, 16, 24, 29, 39, 41, 43, 45 | Map, Photo |
| Gramineae | Alopecurus pratensis | , meadow foxtail | BOTTINEAU, CASS, MCKENZIE, TOWNER, WALSH. Introduced. | 3, 4, 7, 16, 28, 29, 39, 43, 45 | Map, Photo |
| Malvaceae | Althaea officinalis | , common marshmallow | CASS. Introduced. | 5, 29, 39, 43, 47 | Map |
| Cruciferae | Alyssum alyssoides | , pale madwort | BENSON, BILLINGS, HETTINGER, STARK. Introduced. | 5, 7, 45 | Map |
| Cruciferae | Alyssum desertorum | , desert madwort | BILLINGS, DUNN, GOLDEN VALLEY, MCKENZIE, SIOUX, STARK, WARD. Introduced. | 1, 5, 12, 24, 29, 32, 33, 39, 41, 43, 47 | Map |
| Amaranthaceae | Amaranthus albus | , prostrate pigweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 1, 2, 2, 3, 4, 5, 6, 7, 8, 10, 11, 11, 13, 13, 14, 17, 18, 19, 24, 24, 25, 25, 26, 26, 27, 27, 28, 29, 30, 31, 31, 32, 32, 39, 41, 43, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Amaranthus arenicola | , sandhill amaranth | WARD | 17 | Map |
| Amaranthaceae | Amaranthus blitoides | , mat amaranth | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 3, 5, 7, 12, 18, 29, 39, 40, 41, 43, 45, 47 | Map |
| Amaranthaceae | Amaranthus hybridus | , slim amaranth | BOTTINEAU, CASS, DICKEY, GRAND FORKS, MCHENRY, TRAILL, WARD | 1, 4, 6, 7, 27, 29, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Amaranthaceae | Amaranthus palmeri | , carelessweed | MCINTOSH | 20 | Map |
| Amaranthaceae | Amaranthus retroflexus | , redroot amaranth | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Amaranthus tuberculatus | , roughfruit amaranth | BENSON, BURLEIGH, CASS, DICKEY, DUNN, EMMONS, FOSTER, LAMOURE, MCHENRY, OLIVER, RANSOM, RICHLAND, SARGENT, SLOPE, STUTSMAN, TRAILL, WARD | 1, 1, 2, 3, 4, 5, 6, 11, 16, 16, 18, 19, 25, 25, 26, 26, 27, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Compositae | Ambrosia acanthicarpa | , flatspine bur ragweed | BENSON, BILLINGS, BOTTINEAU, DUNN, MCHENRY, MCKENZIE, STARK | 1, 3, 5, 18, 24, 27, 28, 29, 33, 35, 39, 41, 43, 45, 47 | Map |
| Compositae | Ambrosia artemisiifolia | , annual ragweed | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 40, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Ambrosia psilostachya | , Cuman ragweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Ambrosia tomentosa | , skeletonleaf bur ragweed | BILLINGS, DICKEY, LAMOURE | 2, 29, 32, 39, 41, 47 | Map |
| Compositae | Ambrosia trifida | , great ragweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map |
| Rosaceae | Amelanchier alnifolia | , Saskatoon serviceberry | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 11, 13, 14, 17, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo |
| Rosaceae | Amelanchier humilis | , low serviceberry | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, CASS, CAVALIER, DIVIDE, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 4, 5, 24, 25, 26, 29, 30, 31, 32, 39, 41, 43 | Map, Photo, Photo, Photo |
| Rosaceae | Amelanchier sanguinea | , roundleaf serviceberry | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, CASS, CAVALIER, DIVIDE, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD | 1, 29 | Map |
| Rosaceae | Amelanchier stolonifera | , running serviceberry | RICHLAND | 29, 39, 45 | Map |
| Lythraceae | Ammannia coccinea | , valley redstem | CASS, EMMONS, KIDDER, LOGAN, MCINTOSH, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 5, 6, 11, 15, 25, 26, 27, 29, 31, 43 | Map |
| Lythraceae | Ammannia robusta | , grand redstem | CASS, EMMONS, MCINTOSH, STUTSMAN | 16, 29, 39, 41 | Map |
| Leguminosae | Amorpha canescens | , leadplant | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Amorpha fruticosa | , false indigo bush | BARNES, BOTTINEAU, BURLEIGH, CASS, DICKEY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, WALSH | 1, 2, 3, 4, 5, 6, 7, 11, 12, 14, 15, 16, 18, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43 | Map, Photo |
| Leguminosae | Amorpha nana | , dwarf false indigo | BARNES, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, STARK, STUTSMAN, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Leguminosae | Amphicarpaea bracteata | , American hogpeanut | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, LAMOURE, MCLEAN, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 11, 14, 17, 18, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 43 | Map, Photo, Photo, Photo, Photo |
| Boraginaceae | Amsinckia menziesii | , Menzies' fiddleneck | CASS, PEMBINA, PIERCE | 27, 27, 29, 30, 39, 41, 43 | Map |
| Primulaceae | Anagallis minima | , chaffweed | BARNES, BENSON, BURKE, DIVIDE, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, RANSOM, SIOUX, SLOPE | 1, 3, 4, 5, 5, 7, 11, 13, 18, 27, 29, 31, 39, 41, 43, 47 | Map, Photo |
| Compositae | Anaphalis margaritacea | , western pearly everlasting | MORTON | 5, 7 | Map |
| Boraginaceae | Anchusa arvensis | , small bugloss | DUNN, MCKENZIE, STARK, STUTSMAN. Introduced. | 5, 24, 29, 39, 40, 43 | Map |
| Gramineae | Andropogon gerardii | , big bluestem | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Andropogon hallii | , sand bluestem | BENSON, BILLINGS, BOTTINEAU, BURKE, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, WELLS, WILLIAMS | 1, 4, 5, 6, 7, 13, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45 | Map, Photo |
| Primulaceae | Androsace occidentalis | , western rockjasmine | ADAMS, BARNES, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Primulaceae | Androsace septentrionalis | , pygmyflower rockjasmine | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, ROLETTE, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 7, 7, 11, 13, 17, 18, 21, 24, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Ranunculaceae | Anemone canadensis | , Canadian anemone | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Anemone cylindrica | , candle anemone | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Anemone multifida | , Pacific anemone | BENSON, BOTTINEAU, BURKE, DIVIDE, GOLDEN VALLEY, GRAND FORKS, MCLEAN, MOUNTRAIL, NELSON, ROLETTE, WILLIAMS | 1, 3, 4, 5, 7, 9, 13, 18, 27, 28, 29, 32, 39, 41, 43, 45, 47 | Map |
| Ranunculaceae | Anemone quinquefolia | , wood anemone | BOTTINEAU, CASS, CAVALIER, EMMONS, GRAND FORKS, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, SARGENT, WILLIAMS | 1, 3, 5, 6, 7, 26, 27, 29, 30, 34, 39, 41, 42, 43, 47 | Map |
| Ranunculaceae | Anemone virginiana | , tall thimbleweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 11, 13, 14, 18, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Umbelliferae | Anethum graveolens | , dill | BARNES, BILLINGS, CASS, DICKEY, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, PEMBINA, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, WARD. Introduced. | 1, 2, 4, 5, 7, 11, 17, 24, 25, 26, 27, 29, 30, 31, 32, 39, 43 | Map |
| Malvaceae | Anoda cristata | , crested anoda | TRAILL | 5 | Map |
| Compositae | Antennaria howellii | , Howell's pussytoes | ADAMS, BILLINGS, BOWMAN, BURKE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RICHLAND, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 9, 13, 14, 17, 24, 25, 26, 27, 29, 29, 30, 31, 32, 39, 41, 41, 42, 43, 43, 45, 47 | Map, Photo, Photo |
| Compositae | Antennaria microphylla | , littleleaf pussytoes | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, HETTINGER, KIDDER, MCHENRY, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RENVILLE, ROLETTE, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 4, 5, 7, 8, 17, 18, 21, 24, 27, 28, 29, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Antennaria neglecta | , field pussytoes | BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Antennaria parvifolia | , small-leaf pussytoes | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 12, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Antennaria rosea | , rosy pussytoes | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, EMMONS, GOLDEN VALLEY, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, ROLETTE, SARGENT, SHERIDAN, SLOPE, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 5, 6, 11, 13, 18, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map |
| Compositae | Anthemis arvensis | , corn chamomile | GRAND FORKS. Introduced. | 29, 39, 40, 41, 43, 47 | Map |
| Compositae | Anthemis cotula | , stinking chamomile | BENSON, BILLINGS, BOTTINEAU, CASS, GOLDEN VALLEY, GRAND FORKS, NELSON, PEMBINA, RAMSEY, RICHLAND, SHERIDAN, WARD, WELLS. Introduced. | 1, 3, 5, 7, 17, 19, 25, 26, 27, 29, 30, 32, 39, 40, 43, 45, 47 | Map |
| Compositae | Anthemis tinctoria | , golden chamomile | BOTTINEAU, PEMBINA, ROLETTE. Introduced. | 29, 30, 39, 43, 43, 47 | Map |
| Leguminosae | Anthyllis vulneraria | , common kidneyvetch | CASS. Introduced. | 3, 27, 29, 39 | Map |
| Leguminosae | Apios americana | , groundnut | RANSOM | 1, 5, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43 | Map |
| Apocynaceae | Apocynum androsaemifolium | , spreading dogbane | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Apocynaceae | Apocynum cannabinum | , Indianhemp | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 1, 2, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 11, 13, 13, 14, 16, 17, 17, 18, 19, 21, 24, 25, 26, 26, 27, 27, 28, 29, 30, 31, 31, 32, 32, 39, 41, 42, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Apocynaceae | Apocynum ×floribundum | , intermediate dogbane | BOTTINEAU, CASS, RAMSEY | 1, 7, 29, 39, 41, 45 | Map |
| Ranunculaceae | Aquilegia canadensis | , red columbine | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, LAMOURE, MERCER, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STUTSMAN, WALSH | 1, 2, 3, 4, 5, 6, 7, 8, 11, 14, 18, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cruciferae | Arabis canadensis | , sicklepod | RANSOM, RICHLAND, SARGENT | 1, 5, 26, 29, 33, 34, 35, 39, 41, 43 | Map |
| Cruciferae | Arabis drummondii | , Drummond's rockcress | BENSON, BILLINGS, BOTTINEAU, DIVIDE, DUNN, EDDY, GOLDEN VALLEY, GRAND FORKS, GRANT, NELSON, PEMBINA, RAMSEY, ROLETTE, WARD | 1, 3, 4, 5, 6, 7, 7, 8, 14, 18, 21, 24, 27, 28, 29, 30, 32, 39, 41, 43, 43, 47 | Map |
| Cruciferae | Arabis glabra | , tower rockcress | BENSON, BILLINGS, BURKE, DUNN, GOLDEN VALLEY, GRANT, MOUNTRAIL, PEMBINA, RAMSEY, WILLIAMS | 1, 4, 5, 13, 24, 29, 39, 41, 43 | Map |
| Cruciferae | Arabis hirsuta | , hairy rockcress | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Arabis holboellii | , Holboell's rockcress | ADAMS, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 4, 5, 5, 6, 7, 11, 12, 13, 14, 17, 18, 19, 24, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo |
| Cruciferae | Arabis ×divaricarpa | , spreadingpod rockcress | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DIVIDE, DUNN, EDDY, KIDDER, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 13, 17, 19, 24, 25, 26, 27, 28, 30, 32, 41, 44, 47 | Map |
| Araliaceae | Aralia nudicaulis | , wild sarsaparilla | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, EDDY, GRAND FORKS, GRIGGS, LAMOURE, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Araliaceae | Aralia racemosa | , American spikenard | CASS | 5 | Map |
| Compositae | Arctium lappa | , greater burdock | GRAND FORKS, LAMOURE. Introduced. | 7, 29, 39, 40, 47 | Map |
| Compositae | Arctium minus | , lesser burdock | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Arctium tomentosum | , woolly burdock | CASS, FOSTER, GRAND FORKS, PEMBINA, RANSOM. Introduced. | 5, 19, 29, 39, 43, 47 | Map |
| Ericaceae | Arctostaphylos uva-ursi | , kinnikinnick | ADAMS, BILLINGS, BOTTINEAU, BURLEIGH, CAVALIER, DUNN, GOLDEN VALLEY, HETTINGER, MCHENRY, MCKENZIE, MORTON, MOUNTRAIL, NELSON, PEMBINA, RICHLAND, SLOPE, STARK | 1, 3, 4, 5, 5, 6, 7, 13, 24, 24, 25, 26, 27, 28, 29, 30, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo |
| Papaveraceae | Argemone polyanthemos | , crested pricklypoppy | MCKENZIE, MERCER | 1, 5, 24, 29, 39, 41, 43, 47 | Map |
| Rosaceae | Argentina anserina | , silverweed cinquefoil | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Araceae | Arisaema triphyllum | , Jack in the pulpit | BOTTINEAU, CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, TRAILL | 1, 3, 4, 6, 7, 7, 14, 18, 25, 26, 27, 28, 29, 39, 41, 45 | Map, Photo, Photo, Photo, Photo |
| Gramineae | Aristida basiramea | , forked threeawn | CASS | 29, 39 | Map |
| Gramineae | Aristida purpurea | , purple threeawn | ADAMS, BARNES, BILLINGS, BOTTINEAU, BURLEIGH, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, GRIGGS, LAMOURE, MCHENRY, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo |
| Cruciferae | Armoracia rusticana | , horseradish | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, DICKEY, DIVIDE, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, OLIVER, PEMBINA, SARGENT, SHERIDAN, STARK, STUTSMAN, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 11, 13, 17, 19, 24, 25, 27, 28, 29, 30, 31, 32, 39, 43, 47 | Map, Photo |
| Compositae | Arnica cordifolia | , heartleaf arnica | LOGAN | 29, 35, 39, 43 | Map |
| Compositae | Arnica fulgens | , foothill arnica | BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, ROLETTE, SHERIDAN, SLOPE, STARK, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 13, 17, 18, 19, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map |
| Compositae | Artemisia absinthium | , absinthium | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 37, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Artemisia biennis | , biennial wormwood | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Artemisia campestris | , field sagewort | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Artemisia cana | , silver sagebrush | BARNES, BILLINGS, BOWMAN, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, MCHENRY, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 12, 13, 17, 18, 24, 27, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Artemisia dracunculus | , tarragon | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Artemisia frigida | , prairie sagewort | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Artemisia longifolia | , longleaf wormwood | BENSON, BILLINGS, BOWMAN, BURKE, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 18, 24, 27, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Compositae | Artemisia ludoviciana | , white sagebrush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Artemisia tridentata | , big sagebrush | BENSON, BILLINGS, BOWMAN, DUNN, EMMONS, GOLDEN VALLEY, MCKENZIE, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 18, 24, 27, 29, 32, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Aristolochiaceae | Asarum canadense | , Canadian wildginger | CAVALIER, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 4, 6, 7, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Apocynaceae | Asclepias incarnata | , swamp milkweed | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN, TRAILL, WALSH | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 16, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo |
| Apocynaceae | Asclepias lanuginosa | , sidecluster milkweed | BILLINGS, DUNN, GRAND FORKS, GRANT, PEMBINA, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, WARD | 1, 5, 7, 11, 14, 18, 25, 26, 27, 29, 34, 39, 41, 43 | Map |
| Apocynaceae | Asclepias ovalifolia | , oval-leaf milkweed | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Apocynaceae | Asclepias pumila | , plains milkweed | BARNES, BILLINGS, BOWMAN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MORTON, SIOUX, SLOPE, STUTSMAN | 1, 4, 5, 6, 7, 11, 27, 29, 31, 32, 39, 41, 43, 45 | Map |
| Apocynaceae | Asclepias purpurascens | , purple milkweed | CASS, RICHLAND | 5, 27 | Map |
| Apocynaceae | Asclepias speciosa | , showy milkweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 29, 30, 31, 32, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Apocynaceae | Asclepias sullivantii | , prairie milkweed | CASS, RICHLAND | 1, 5, 25, 26, 29, 35, 39, 41, 43 | Map |
| Apocynaceae | Asclepias syriaca | , common milkweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, MORTON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 14, 17, 19, 21, 25, 26, 27, 28, 29, 30, 31, 36, 39, 41, 42, 43, 44, 45, 48 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Apocynaceae | Asclepias verticillata | , whorled milkweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Apocynaceae | Asclepias viridiflora | , green comet milkweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 12, 13, 17, 18, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Asparagaceae | Asparagus officinalis | , garden asparagus | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 7, 7, 8, 10, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Boraginaceae | Asperugo procumbens | , German-madwort | DICKEY, DUNN, SLOPE, STARK, WILLIAMS. Introduced. | 7, 24, 27, 29, 39, 43 | Map |
| Leguminosae | Astragalus agrestis | , purple milkvetch | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Astragalus australis | , Indian milkvetch | BILLINGS, GRANT, MORTON, WARD, WILLIAMS | 1, 6, 7, 17, 27, 29, 32, 33, 34, 35, 39, 41, 43, 45 | Map |
| Leguminosae | Astragalus bisulcatus | , twogrooved milkvetch | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo |
| Leguminosae | Astragalus canadensis | , Canadian milkvetch | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo |
| Leguminosae | Astragalus ceramicus | , painted milkvetch | BILLINGS, BOWMAN, DICKEY, LAMOURE, SHERIDAN, SLOPE | 1, 2, 5, 5, 7, 27, 29, 32, 32, 33, 39, 41, 43 | Map |
| Leguminosae | Astragalus cicer | , chickpea milkvetch | RICHLAND, TOWNER. Introduced. | 4, 7 | Map, Photo |
| Leguminosae | Astragalus crassicarpus | , groundplum milkvetch | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Astragalus drummondii | , Drummond's milkvetch | GRAND FORKS, WILLIAMS | 1, 5, 7, 13, 27, 29, 34, 35, 39, 41, 43 | Map |
| Leguminosae | Astragalus eucosmus | , elegant milkvetch | BOWMAN, MCKENZIE, SLOPE | 5, 45 | Map |
| Leguminosae | Astragalus flexuosus | , flexile milkvetch | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo |
| Leguminosae | Astragalus gilviflorus | , plains milkvetch | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RENVILLE, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 12, 13, 17, 18, 19, 24, 27, 28, 29, 31, 32, 32, 39, 41, 43, 45, 45 | Map, Photo, Photo |
| Leguminosae | Astragalus gracilis | , slender milkvetch | BOWMAN, GOLDEN VALLEY, MORTON, SLOPE | 1, 5, 7, 27, 29, 32, 33, 39, 41, 43 | Map |
| Leguminosae | Astragalus kentrophyta | , spiny milkvetch | ADAMS, BILLINGS, DUNN, EMMONS, GOLDEN VALLEY, GRANT, MCKENZIE, MORTON, SLOPE, STARK, STUTSMAN, WARD | 1, 3, 5, 27, 29, 32, 39, 41, 43 | Map |
| Leguminosae | Astragalus laxmannii | , Laxmann's milkvetch | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Astragalus lotiflorus | , lotus milkvetch | ADAMS, BENSON, BILLINGS, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MORTON, OLIVER, PIERCE, RICHLAND, SLOPE, STARK, STEELE, STUTSMAN, WARD | 1, 3, 4, 6, 7, 8, 10, 11, 14, 17, 18, 24, 25, 26, 27, 29, 31, 32, 39, 41, 42, 43, 43, 45 | Map |
| Leguminosae | Astragalus missouriensis | , Missouri milkvetch | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 17, 18, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo |
| Leguminosae | Astragalus neglectus | , Cooper's milkvetch | PEMBINA | 29, 34, 35, 39, 41, 43 | Map |
| Leguminosae | Astragalus pectinatus | , narrowleaf milkvetch | BILLINGS, BOTTINEAU, BURKE, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, SIOUX, STARK, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 17, 18, 24, 27, 29, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo |
| Leguminosae | Astragalus plattensis | , Platte River milkvetch | EMMONS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, SIOUX, WARD | 1, 3, 4, 17, 18, 27, 29, 31, 39, 41, 43 | Map |
| Leguminosae | Astragalus purshii | , woollypod milkvetch | BOWMAN, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, SLOPE | 1, 5, 27, 29, 31, 32, 39, 41, 43 | Map |
| Leguminosae | Astragalus racemosus | , cream milkvetch | BARNES, BENSON, BOTTINEAU, BOWMAN, GOLDEN VALLEY, GRANT, MCKENZIE, MORTON, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, WARD | 1, 3, 4, 5, 6, 7, 11, 25, 26, 27, 28, 29, 32, 39, 41, 43, 45 | Map, Photo, Photo |
| Leguminosae | Astragalus reflexus | , drooping milkvetch | BOTTINEAU, CAVALIER | 5, 7 | Map |
| Leguminosae | Astragalus spatulatus | , tufted milkvetch | ADAMS, BENSON, BILLINGS, BOWMAN, GOLDEN VALLEY, MCKENZIE, OLIVER, SLOPE | 1, 3, 5, 6, 7, 24, 27, 29, 32, 39, 41, 42, 43, 45 | Map |
| Leguminosae | Astragalus tenellus | , looseflower milkvetch | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, RAMSEY, SHERIDAN, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 27, 28, 29, 31, 32, 39, 41, 43, 43, 44, 45, 45 | Map, Photo, Photo |
| Leguminosae | Astragalus vexilliflexus | , bentflower milkvetch | BENSON, DUNN, SLOPE, STARK, WARD | 1, 4, 5, 7, 24, 27, 29, 32, 33, 34, 35, 39, 41, 42, 43, 45 | Map |
| Polypodiaceae | Athyrium filix-femina | , common ladyfern | CAVALIER, GRAND FORKS, PEMBINA, RANSOM, RICHLAND | 1, 4, 5, 5, 6, 7, 14, 15, 16, 22, 23, 25, 26, 27, 29, 33, 34, 35, 39, 41, 42, 43, 47 | Map, Photo |
| Amaranthaceae | Atriplex argentea | , silverscale saltbush | BARNES, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, PIERCE, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 11, 13, 17, 18, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map |
| Amaranthaceae | Atriplex canescens | , fourwing saltbush | BILLINGS, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, HETTINGER, MCKENZIE, MORTON, SLOPE | 1, 3, 4, 18, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Amaranthaceae | Atriplex confertifolia | , shadscale saltbush | BILLINGS, SLOPE | 1, 3, 5, 6, 7, 18, 27, 29, 32, 39, 41, 43, 45, 47 | Map |
| Amaranthaceae | Atriplex gardneri | , Gardner's saltbush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, PEMBINA, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 4, 5, 6, 7, 11, 13, 17, 24, 27, 28, 29, 32, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Atriplex glabriuscula | , Scotland orache | CASS | 39 | Map |
| Amaranthaceae | Atriplex hortensis | , garden orache | BOTTINEAU, CAVALIER, DIVIDE, GRAND FORKS, MOUNTRAIL, SHERIDAN, TOWNER, WARD, WILLIAMS. Introduced. | 1, 3, 4, 5, 7, 13, 18, 27, 28, 29, 39, 43, 47 | Map |
| Amaranthaceae | Atriplex micrantha | , twoscale saltbush | BARNES, BILLINGS, BOWMAN, CASS, DUNN, MCKENZIE, STARK, STUTSMAN, WALSH, WILLIAMS. Introduced. | 1, 5, 11, 13, 24, 29, 32, 39, 43 | Map |
| Amaranthaceae | Atriplex patula | , spear saltbush | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 4, 6, 7, 11, 15, 25, 27, 28, 29, 31, 32, 39, 43, 45, 47 | Map |
| Amaranthaceae | Atriplex powellii | , Powell's saltweed | BILLINGS, SLOPE | 29, 39, 41 | Map |
| Amaranthaceae | Atriplex rosea | , tumbling saltweed | BARNES, BOTTINEAU, BURLEIGH, CASS, DIVIDE, EMMONS, GOLDEN VALLEY, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCLEAN, MOUNTRAIL, RICHLAND, STARK, TRAILL, WALSH, WARD. Introduced. | 1, 4, 11, 13, 24, 25, 26, 27, 28, 29, 31, 32, 39, 43, 47 | Map, Photo, Photo, Photo |
| Amaranthaceae | Atriplex subspicata | , saline saltbush | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 2, 4, 8, 10, 13, 16, 19, 21, 24, 25, 26, 29, 44 | Map, Photo, Photo |
| Gramineae | Avena fatua | , wild oat | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 37, 39, 40, 42, 43, 45 | Map, Photo |
| Gramineae | Avenula hookeri | , spikeoat | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 17, 18, 19, 24, 25, 26, 27, 29, 31, 32, 39, 41, 43, 44, 45, 45 | Map, Photo |
| Amaranthaceae | Axyris amaranthoides | , Russian pigweed | BARNES, BOTTINEAU, BURKE, CASS, CAVALIER, DIVIDE, DUNN, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, ROLETTE, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 1, 3, 4, 11, 13, 17, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 43, 45, 47 | Map |
| Plantaginaceae | Bacopa rotundifolia | , disk waterhyssop | CASS, DICKEY, EMMONS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 11, 13, 15, 16, 17, 24, 25, 26, 27, 29, 31, 39, 41, 43, 45 | Map |
| Cruciferae | Barbarea orthoceras | , American yellowrocket | ADAMS | 20 | Map |
| Cruciferae | Barbarea vulgaris | , garden yellowrocket | CASS. Introduced. | 1, 16, 18, 27, 29, 39, 40, 43 | Map |
| Amaranthaceae | Bassia scoparia | , burningbush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 39, 40, 42, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Beckmannia syzigachne | , American sloughgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Bellis perennis | , lawndaisy | CASS. Introduced. | 29, 39, 43, 47 | Map |
| Berberidaceae | Berberis vulgaris | , common barberry | EDDY. Introduced. | 8, 18, 27, 29, 39, 47 | Map |
| Cruciferae | Berteroa incana | , hoary alyssum | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, MCHENRY, MORTON, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, STUTSMAN, TOWNER, TRAILL, WALSH, WARD. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 40, 43, 44, 45, 47 | Map, Photo, Photo |
| Umbelliferae | Berula erecta | , cutleaf waterparsnip | BARNES, EDDY, MCHENRY, MERCER, OLIVER, RANSOM, RICHLAND, SARGENT, WILLIAMS | 1, 3, 5, 6, 7, 8, 11, 13, 15, 16, 19, 25, 26, 27, 29, 39, 41, 43, 45 | Map |
| Betulaceae | Betula glandulosa | , resin birch | BOTTINEAU, EDDY, KIDDER, MCHENRY, PEMBINA, RANSOM, RICHLAND, ROLETTE | 1, 5, 6, 15, 16, 18, 19, 26, 31 | Map |
| Betulaceae | Betula occidentalis | , water birch | BILLINGS, BOTTINEAU, DUNN, GOLDEN VALLEY, MCKENZIE, MCLEAN, RANSOM, RICHLAND, ROLETTE, SLOPE, STARK | 1, 4, 5, 5, 6, 7, 24, 27, 29, 32, 39, 41, 43, 47 | Map, Photo, Photo |
| Betulaceae | Betula pubescens | , downy birch | MCHENRY, ROLETTE. Introduced. | 7 | Map |
| Betulaceae | Betula pumila | , bog birch | BOTTINEAU, EDDY, MCHENRY, PEMBINA, RANSOM, RICHLAND | 3, 4, 25, 27, 28, 29, 30, 39, 41, 43, 47 | Map, Photo |
| Betulaceae | Betula ×sandbergii | , Sandberg's birch | BOTTINEAU, RANSOM | 25, 26, 28, 29, 39, 41 | Map |
| Compositae | Bidens cernua | , nodding beggartick | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Bidens connata | , purplestem beggarticks | CASS, RANSOM, RICHLAND, SARGENT | 1, 15, 26, 29, 41, 43, 47 | Map |
| Compositae | Bidens frondosa | , devil's beggartick | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Bidens tripartita | , threelobe beggarticks | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 8, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 39, 41, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Bidens vulgata | , big devils beggartick | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Boltonia asteroides | , white doll's daisy | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, NELSON, PIERCE, RANSOM, RICHLAND, SARGENT, SHERIDAN, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Boraginaceae | Borago officinalis | , common borage | GRAND FORKS, STUTSMAN. Introduced. | 3, 7, 29, 39, 43 | Map |
| Ophioglossaceae | Botrychium campestre | , Iowa moonwort | MCHENRY | 29, 34, 35, 39, 41, 43, 47 | Map |
| Ophioglossaceae | Botrychium lunaria | , common moonwort | BURKE, MCHENRY | 13, 22, 23, 29, 33, 39, 41, 43 | Map |
| Ophioglossaceae | Botrychium matricariifolium | , matricary grapefern | MCHENRY, SHERIDAN | 4, 29, 34, 39, 43 | Map, Photo |
| Ophioglossaceae | Botrychium minganense | , Mingan moonwort | BOTTINEAU, BURKE, CAVALIER, MCHENRY, RAMSEY, RANSOM, RICHLAND, SARGENT | 5, 21, 26, 29, 34, 35, 39, 41, 43, 47 | Map |
| Ophioglossaceae | Botrychium multifidum | , leathery grapefern | CAVALIER, EDDY, RICHLAND | 5, 29, 34, 35, 39, 41, 43, 47 | Map |
| Ophioglossaceae | Botrychium simplex | , little grapefern | RANSOM | 29, 39, 43 | Map |
| Ophioglossaceae | Botrychium virginianum | , rattlesnake fern | BENSON, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, GRAND FORKS, HETTINGER, MCKENZIE, MCLEAN, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, WALSH | 1, 4, 5, 6, 7, 8, 14, 18, 19, 22, 23, 24, 25, 26, 27, 28, 29, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo |
| Gramineae | Bouteloua curtipendula | , sideoats grama | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Bouteloua dactyloides | , buffalograss | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, OLIVER, PIERCE, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS | 1, 4, 5, 5, 6, 7, 8, 11, 12, 17, 19, 24, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo |
| Gramineae | Bouteloua gracilis | , blue grama | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Bouteloua hirsuta | , hairy grama | ADAMS, GOLDEN VALLEY, GRANT, MORTON, RANSOM, RICHLAND, SARGENT, SLOPE | 1, 3, 4, 5, 6, 7, 18, 25, 26, 27, 29, 39, 41, 43, 43, 45 | Map, Photo |
| Cruciferae | Brassica rapa | , field mustard | EDDY, EMMONS, FOSTER, MCLEAN, WELLS. Introduced. | 1, 3, 5, 7, 8, 18, 19, 27, 29, 39, 40, 43, 47 | Map |
| Compositae | Brickellia eupatorioides | , false boneset | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 45, 45, 47 | Map, Photo, Photo |
| Gramineae | Bromus arvensis | , field brome | ADAMS, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 8, 12, 13, 18, 19, 24, 25, 26, 27, 27, 28, 29, 30, 30, 31, 32, 39, 40, 43, 43, 45 | Map, Photo |
| Gramineae | Bromus briziformis | , rattlesnake brome | EMMONS, KIDDER, LOGAN, MCINTOSH. Introduced. | 5, 29, 31, 39, 40, 43 | Map |
| Gramineae | Bromus carinatus | , California brome | BILLINGS, ROLETTE, SLOPE | 5, 34, 35, 39, 43, 45 | Map |
| Gramineae | Bromus catharticus | , rescuegrass | CASS, SLOPE. Introduced. | 1, 18, 29, 39, 40, 41, 43 | Map |
| Gramineae | Bromus ciliatus | , fringed brome | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 9, 11, 13, 14, 16, 17, 18, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Bromus erectus | , erect brome | MORTON. Introduced. | 29, 39 | Map |
| Gramineae | Bromus hordeaceus | , soft brome | CASS, PIERCE. Introduced. | 27, 29, 39, 40, 41, 43 | Map |
| Gramineae | Bromus inermis | , smooth brome | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 41, 42, 43, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Bromus kalmii | , arctic brome | BILLINGS, BURKE, CAVALIER, GOLDEN VALLEY, GRAND FORKS, MCHENRY, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, WARD | 5, 7, 7, 13, 14, 17, 18, 25, 27, 29, 30, 32, 35, 39, 43 | Map |
| Gramineae | Bromus latiglumis | , earlyleaf brome | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SHERIDAN, STEELE, STUTSMAN, TOWNER, WARD, WELLS | 1, 5, 7, 8, 11, 13, 14, 18, 19, 24, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45 | Map |
| Gramineae | Bromus marginatus | , mountain brome | BILLINGS, SLOPE | 5, 18, 32, 41 | Map |
| Gramineae | Bromus porteri | , Porter brome | BILLINGS, BOTTINEAU, BURKE, DIVIDE, DUNN, GOLDEN VALLEY, MCKENZIE, MOUNTRAIL, ROLETTE, SHERIDAN, STARK, WARD, WILLIAMS | 1, 3, 5, 6, 13, 17, 24, 27, 28, 29, 39, 41, 43, 45 | Map |
| Gramineae | Bromus pubescens | , hairy woodland brome | BARNES, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 11, 26, 29, 39, 41, 43 | Map |
| Gramineae | Bromus racemosus | , bald brome | ADAMS, CASS, SLOPE. Introduced. | 1, 3, 4, 29, 39, 40, 43, 45 | Map |
| Gramineae | Bromus squarrosus | , corn brome | BENSON, BILLINGS, BOTTINEAU, EMMONS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, SHERIDAN, STARK, STUTSMAN. Introduced. | 1, 5, 11, 24, 27, 29, 31, 39, 43 | Map |
| Gramineae | Bromus tectorum | , cheatgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 36, 39, 40, 42, 43, 45 | Map, Photo |
| Boraginaceae | Buglossoides arvensis | , corn gromwell | MCHENRY, STARK, STUTSMAN. Introduced. | 1, 7, 29, 39, 40, 43 | Map |
| Butomaceae | Butomus umbellatus | , flowering rush | BARNES, BOTTINEAU, MCHENRY, STUTSMAN. Introduced. | 5, 11, 15, 16, 29, 33, 39, 40, 43, 47 | Map |
| Gramineae | Calamagrostis canadensis | , bluejoint | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MERCER, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 11, 13, 15, 16, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Calamagrostis epigeios | , chee reedgrass | BOTTINEAU. Introduced. | 29, 39, 45 | Map |
| Gramineae | Calamagrostis montanensis | , plains reedgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 11, 13, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map |
| Gramineae | Calamagrostis stricta | , slimstem reedgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 31, 32, 39, 41, 42, 43, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Calamovilfa longifolia | , prairie sandreed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Calendula officinalis | , pot marigold | CASS. Introduced. | 5 | Map |
| Araceae | Calla palustris | , water arum | BOTTINEAU, PEMBINA, ROLETTE | 5, 6, 7, 15, 16, 28, 29, 30, 33, 34, 35, 39, 41, 42, 43, 47 | Map |
| Plantaginaceae | Callitriche hermaphroditica | , northern water-starwort | BENSON, BILLINGS, BOTTINEAU, BURKE, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MOUNTRAIL, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 4, 6, 7, 8, 11, 13, 15, 16, 17, 19, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44 | Map, Photo, Photo, Photo |
| Plantaginaceae | Callitriche palustris | , vernal water-starwort | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, MOUNTRAIL, NELSON, RICHLAND, ROLETTE, SIOUX, STARK, STUTSMAN, WARD | 1, 2, 3, 4, 6, 7, 8, 11, 15, 16, 17, 24, 27, 28, 29, 31, 39, 41, 43, 43, 45 | Map, Photo, Photo, Photo |
| Liliaceae | Calochortus gunnisonii | , Gunnison's mariposa lily | BILLINGS, BOWMAN, SLOPE | 4, 7 | Map, Photo, Photo |
| Liliaceae | Calochortus nuttallii | , sego lily | BILLINGS, BOWMAN, GOLDEN VALLEY, MCKENZIE, SLOPE | 1, 3, 5, 6, 7, 7, 18, 24, 27, 29, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Ranunculaceae | Caltha palustris | , yellow marsh marigold | BENSON, BOTTINEAU, BURLEIGH, CAVALIER, DICKEY, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCINTOSH, MERCER, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH | 1, 3, 4, 5, 6, 7, 8, 14, 15, 16, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Onagraceae | Calylophus serrulatus | , yellow sundrops | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Convolvulaceae | Calystegia macounii | , Macoun's false bindweed | RAMSEY, TOWNER | 4, 5, 18, 21, 29, 39, 41 | Map, Photo |
| Convolvulaceae | Calystegia sepium | , hedge false bindweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 37, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo |
| Cruciferae | Camelina microcarpa | , littlepod false flax | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 11, 13, 17, 21, 24, 27, 28, 29, 31, 32, 39, 40, 43, 45, 47 | Map, Photo |
| Cruciferae | Camelina sativa | , gold-of-pleasure | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 3, 4, 5, 7, 11, 13, 13, 17, 18, 19, 24, 25, 26, 27, 27, 28, 29, 30, 31, 32, 39, 39, 43, 45, 47 | Map |
| Campanulaceae | Campanula aparinoides | , marsh bellflower | PEMBINA, RANSOM, RICHLAND | 1, 3, 5, 7, 7, 15, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43 | Map |
| Campanulaceae | Campanula glomerata | , Dane's blood | TRAILL. Introduced. | 5, 29, 39 | Map |
| Campanulaceae | Campanula rapunculoides | , rampion bellflower | ADAMS, BARNES, BENSON, BILLINGS, CASS, DICKEY, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, WARD. Introduced. | 1, 2, 4, 5, 7, 8, 11, 19, 21, 24, 25, 26, 27, 29, 30, 31, 32, 39, 40, 43 | Map, Photo, Photo |
| Campanulaceae | Campanula rotundifolia | , bluebell bellflower | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Canadanthus modestus | , giant mountain aster | MERCER, SLOPE | 4, 39, 47 | Map, Photo, Photo |
| Cannabaceae | Cannabis sativa | , marijuana | CASS, DICKEY, LAMOURE, RANSOM, RICHLAND, SARGENT. Introduced. | 1, 2, 3, 6, 7, 18, 25, 26, 27, 29, 37, 39, 40, 43, 47 | Map |
| Cruciferae | Capsella bursa-pastoris | , shepherd's purse | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 6, 7, 7, 8, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo |
| Leguminosae | Caragana arborescens | , Siberian peashrub | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, MCHENRY, MCLEAN, MERCER, MORTON, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 7, 8, 11, 12, 13, 18, 19, 21, 24, 25, 26, 29, 30, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Caragana aurantiaca | , dwarf peashrub | BARNES, BOTTINEAU, BURLEIGH, CASS, FOSTER, GRAND FORKS, GRIGGS, WARD. Introduced. | 7, 29, 39 | Map |
| Cruciferae | Cardamine bulbosa | , bulbous bittercress | BOTTINEAU, CAVALIER, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WALSH | 1, 5, 15, 16, 25, 26, 27, 29, 34, 35, 39, 41, 43 | Map |
| Cruciferae | Cardamine pensylvanica | , Pennsylvania bittercress | BOTTINEAU, CAVALIER, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WALSH | 1, 3, 7, 7, 14, 15, 16, 18, 25, 26, 27, 28, 29, 30, 39, 41, 43, 47 | Map |
| Cruciferae | Cardaria chalepensis | , lenspod whitetop | ADAMS, BILLINGS, DICKEY, DUNN, GOLDEN VALLEY, MORTON, MOUNTRAIL, SLOPE, WELLS, WILLIAMS. Introduced. | 5, 29, 37, 39, 47 | Map |
| Cruciferae | Cardaria draba | , whitetop | ADAMS, BARNES, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, LAMOURE, MORTON, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, TRAILL, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 6, 11, 13, 19, 24, 25, 26, 27, 28, 29, 32, 36, 37, 39, 40, 43, 43, 45, 47 | Map |
| Cruciferae | Cardaria pubescens | , hairy whitetop | CASS, GRAND FORKS, MCKENZIE. Introduced. | 5, 7, 24, 27, 29, 37, 39, 40, 43, 47 | Map |
| Compositae | Carduus acanthoides | , spiny plumeless thistle | CASS. Introduced. | 1, 29, 39, 40, 43, 47 | Map |
| Compositae | Carduus crispus | , curly plumeless thistle | CASS. Introduced. | 27, 29, 39, 40, 43 | Map |
| Compositae | Carduus nutans | , nodding plumeless thistle | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 4, 5, 6, 7, 8, 13, 17, 21, 27, 29, 30, 36, 37, 39, 40, 41, 43, 45, 47 | Map, Photo, Photo |
| Cyperaceae | Carex alopecoidea | , foxtail sedge | BARNES, BOTTINEAU, KIDDER, PEMBINA, RANSOM, RICHLAND, ROLETTE, WALSH | 6, 7, 15, 16, 25, 26, 29, 30, 34, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex aquatilis | , water sedge | BARNES, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cyperaceae | Carex assiniboinensis | , Assiniboia sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, STEELE, STUTSMAN, WARD | 1, 3, 4, 5, 6, 11, 13, 14, 17, 17, 18, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cyperaceae | Carex atherodes | , wheat sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex athrostachya | , slenderbeak sedge | BENSON, BURKE, DIVIDE, MOUNTRAIL, WILLIAMS | 4, 5, 6, 13, 15, 16, 18, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex aurea | , golden sedge | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Cyperaceae | Carex backii | , Back's sedge | BOTTINEAU, BURKE, CAVALIER | 3, 5, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex bebbii | , Bebb's sedge | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, DIVIDE, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STUTSMAN, WALSH, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 15, 16, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex bicknellii | , Bicknell's sedge | ADAMS, BARNES, BENSON, BOTTINEAU, CASS, DICKEY, EDDY, GRANT, GRIGGS, LAMOURE, MCHENRY, MCKENZIE, MORTON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, STEELE, STUTSMAN, WILLIAMS | 1, 2, 3, 4, 5, 11, 15, 16, 25, 26, 27, 29, 39, 41, 43, 45, 47 | Map, Photo |
| Cyperaceae | Carex blanda | , eastern woodland sedge | BARNES, CASS, DICKEY, GRAND FORKS, LAMOURE, MCLEAN, MERCER, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH | 1, 2, 5, 6, 11, 14, 26, 27, 29, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex brevior | , shortbeak sedge | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WARD, WILLIAMS | 1, 2, 4, 5, 6, 6, 7, 8, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex brunnescens | , brownish sedge | MCHENRY | 16, 29, 34, 35, 41, 43 | Map |
| Cyperaceae | Carex buxbaumii | , Buxbaum's sedge | BARNES, EDDY, MCHENRY, STUTSMAN | 5, 6, 7, 8, 15, 16, 29, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex capillaris | , hair-like sedge | BOTTINEAU, CAVALIER, MCHENRY | 5, 7, 15, 16, 28, 29, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex chordorrhiza | , creeping sedge | BOTTINEAU | 4, 7, 16, 29, 34, 35, 39, 41, 43 | Map, Photo |
| Cyperaceae | Carex crawei | , Crawe's sedge | BARNES, BURKE, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 4, 5, 6, 7, 11, 13, 15, 16, 18, 24, 25, 26, 27, 29, 30, 31, 39, 41, 43, 47 | Map, Photo |
| Cyperaceae | Carex cristatella | , crested sedge | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, EMMONS, KIDDER, LOGAN, MCINTOSH, MCLEAN, MERCER, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 15, 16, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Cyperaceae | Carex davisii | , Davis' sedge | RICHLAND | 1, 25, 26, 29, 33, 41, 43 | Map |
| Cyperaceae | Carex deweyana | , Dewey sedge | BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, GRAND FORKS, GRIGGS, MCKENZIE, MOUNTRAIL, PEMBINA, RAMSEY, RICHLAND, ROLETTE | 1, 3, 4, 5, 5, 6, 7, 13, 14, 18, 21, 24, 25, 26, 27, 28, 29, 30, 39, 41, 43, 47 | Map, Photo |
| Cyperaceae | Carex diandra | , lesser panicled sedge | BENSON, BILLINGS, BOTTINEAU, BURKE, GRAND FORKS, MCKENZIE, PEMBINA, ROLETTE | 3, 5, 6, 13, 14, 15, 16, 27, 28, 29, 30, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex disperma | , softleaf sedge | BARNES, BOTTINEAU, CAVALIER, GRAND FORKS, MCHENRY, NELSON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT | 1, 5, 7, 11, 15, 16, 26, 28, 29, 30, 34, 35, 39, 41, 42, 43, 45, 47 | Map |
| Cyperaceae | Carex douglasii | , Douglas' sedge | BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, DIVIDE, EMMONS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, MORTON, MOUNTRAIL, RENVILLE, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS | 1, 3, 4, 5, 6, 7, 11, 13, 17, 18, 24, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 47 | Map |
| Cyperaceae | Carex duriuscula | , needleleaf sedge | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex eburnea | , bristleleaf sedge | BARNES, BILLINGS, BOTTINEAU, CASS, GRAND FORKS, RICHLAND, WALSH | 1, 5, 6, 11, 14, 25, 26, 27, 28, 29, 32, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex echinata | , star sedge | BENSON, BOTTINEAU, GRAND FORKS | 14, 29, 34, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex emoryi | , Emory's sedge | BARNES, EMMONS, GRAND FORKS, MCHENRY, MCKENZIE, MCLEAN, OLIVER, RANSOM, RICHLAND, ROLETTE, SARGENT, TOWNER, WARD | 1, 4, 5, 7, 15, 16, 17, 18, 26, 27, 29, 31, 39, 41, 43, 44, 47 | Map, Photo |
| Cyperaceae | Carex exserta | , shorthair sedge | EDDY, RAMSEY, RICHLAND | 5 | Map |
| Cyperaceae | Carex festucacea | , fescue sedge | CASS | 3, 39, 43 | Map |
| Cyperaceae | Carex filifolia | , threadleaf sedge | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex formosa | , handsome sedge | RICHLAND | 5, 29, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex garberi | , elk sedge | BENSON, BURKE, MCHENRY, MOUNTRAIL | 4, 5, 7, 13, 15, 16, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex gracillima | , graceful sedge | PEMBINA, RICHLAND | 5, 27, 29, 34, 39, 41, 42, 43, 47 | Map |
| Cyperaceae | Carex granularis | , limestone meadow sedge | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, TOWNER, WALSH | 1, 3, 4, 5, 6, 7, 8, 11, 14, 15, 16, 18, 24, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Cyperaceae | Carex gravida | , heavy sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 47 | Map |
| Cyperaceae | Carex gynocrates | , northern bog sedge | BENSON, MCHENRY, WILLIAMS | 4, 16, 29, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex hallii | , deer sedge | BOTTINEAU, BURKE, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MOUNTRAIL, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 4, 5, 6, 7, 8, 13, 15, 16, 19, 25, 26, 28, 29, 31, 39, 43, 44, 47 | Map, Photo, Photo, Photo |
| Cyperaceae | Carex haydenii | , Hayden's sedge | DUNN | 15, 16, 29, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex hookeriana | , Hooker's sedge | BENSON, BOTTINEAU, BURKE, CAVALIER, GRIGGS, MCHENRY, MOUNTRAIL, STEELE, WARD, WILLIAMS | 4, 5, 13, 15, 16, 18, 27, 28, 29, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Cyperaceae | Carex hystericina | , bottlebrush sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, EDDY, EMMONS, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MERCER, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WARD | 1, 3, 4, 5, 6, 7, 7, 8, 11, 14, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 45 | Map |
| Cyperaceae | Carex inops | , long-stolon sedge | BARNES, BENSON, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 2, 4, 5, 7, 8, 11, 12, 18, 19, 21, 24, 26, 29, 31, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo |
| Cyperaceae | Carex interior | , inland sedge | BARNES, BENSON, BOTTINEAU, BURKE, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WELLS | 1, 4, 5, 6, 7, 8, 11, 13, 15, 16, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo |
| Cyperaceae | Carex lacustris | , hairy sedge | BENSON, EDDY, LAMOURE, PEMBINA, RANSOM, RICHLAND, ROLETTE, WALSH | 1, 5, 6, 7, 8, 15, 16, 19, 25, 26, 29, 39, 41, 43, 44, 47 | Map |
| Cyperaceae | Carex laeviconica | , smoothcone sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map |
| Cyperaceae | Carex lasiocarpa | , woollyfruit sedge | BARNES, BOTTINEAU, GRAND FORKS, MCHENRY, RANSOM, RICHLAND | 4, 5, 7, 16, 29, 34, 39, 43, 45 | Map, Photo |
| Cyperaceae | Carex laxiflora | , broad looseflower sedge | CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT | 3, 4, 7, 25, 30, 45 | Map, Photo |
| Cyperaceae | Carex leptalea | , bristlystalked sedge | CAVALIER, MCHENRY, PEMBINA, RANSOM, RICHLAND, SARGENT | 3, 5, 6, 7, 15, 16, 26, 27, 29, 30, 34, 35, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex limosa | , mud sedge | BOTTINEAU, MCHENRY | 4, 6, 7, 15, 16, 29, 34, 35, 39, 41, 43, 47 | Map, Photo, Photo |
| Cyperaceae | Carex meadii | , Mead's sedge | BENSON, BOTTINEAU, CASS, DICKEY, EDDY, EMMONS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, PEMBINA, RICHLAND | 1, 2, 5, 8, 15, 16, 19, 25, 26, 29, 30, 31, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex molesta | , troublesome sedge | BARNES, BENSON, BURKE, BURLEIGH, CASS, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 4, 5, 11, 15, 17, 26, 29, 31, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex nebrascensis | , Nebraska sedge | EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, SLOPE | 1, 5, 15, 16, 29, 31, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex nigromarginata | , black edge sedge | BURKE, MOUNTRAIL, RICHLAND, WALSH | 7, 13, 25 | Map |
| Cyperaceae | Carex obtusata | , obtuse sedge | BARNES, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DIVIDE, EDDY, EMMONS, FOSTER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, STUTSMAN, TOWNER, WARD, WILLIAMS | 1, 4, 5, 5, 6, 8, 9, 11, 13, 17, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 44, 45, 47 | Map |
| Cyperaceae | Carex occidentalis | , western sedge | BENSON | 39, 43, 47 | Map |
| Cyperaceae | Carex parryana | , Parry's sedge | BENSON, BURKE, DIVIDE, GRIGGS, MCHENRY, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, STUTSMAN, WARD, WILLIAMS | 4, 7, 11, 13, 17, 18, 25, 26, 29, 34, 39, 41, 43, 45 | Map, Photo |
| Cyperaceae | Carex peckii | , Peck's sedge | BARNES, BOTTINEAU, BURKE, CASS, DUNN, GRAND FORKS, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH, WARD | 1, 4, 5, 6, 7, 11, 14, 17, 24, 26, 28, 29, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex pedunculata | , longstalk sedge | CAVALIER | 5, 29, 34, 35, 39, 41, 43 | Map |
| Cyperaceae | Carex pellita | , woolly sedge | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex pensylvanica | , Pennsylvania sedge | BARNES, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 9, 11, 13, 14, 17, 18, 21, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45 | Map, Photo, Photo |
| Cyperaceae | Carex praegracilis | , clustered field sedge | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex prairea | , prairie sedge | BARNES, BENSON, BOTTINEAU, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, PEMBINA, SHERIDAN, STUTSMAN | 1, 4, 5, 5, 6, 7, 8, 11, 15, 16, 19, 28, 29, 30, 31, 33, 39, 41, 47 | Map, Photo |
| Cyperaceae | Carex praticola | , meadow sedge | BENSON, DIVIDE, DUNN, MOUNTRAIL, RENVILLE | 4, 5, 7, 13, 18, 24, 29, 39, 41, 43, 47 | Map, Photo |
| Cyperaceae | Carex pseudocyperus | , cypress-like sedge | BENSON, BOTTINEAU, EDDY, GRAND FORKS, KIDDER, MCHENRY, NELSON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WELLS | 3, 4, 5, 5, 6, 7, 7, 8, 9, 14, 15, 16, 26, 27, 28, 29, 31, 33, 34, 35, 39, 41, 43 | Map, Photo |
| Cyperaceae | Carex radiata | , eastern star sedge | BARNES, BENSON, BOTTINEAU, CASS, PEMBINA, RANSOM, RICHLAND, SARGENT, WALSH | 29, 39, 41, 47 | Map |
| Cyperaceae | Carex retrorsa | , knotsheath sedge | BENSON, BOTTINEAU, BURLEIGH, CASS, DICKEY, DIVIDE, GRAND FORKS, GRIGGS, LAMOURE, NELSON, PEMBINA, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 7, 11, 14, 15, 17, 18, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex richardsonii | , Richardson's sedge | BOTTINEAU, CASS, MCHENRY, RICHLAND | 5, 5, 28, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex rosea | , rosy sedge | BARNES, BENSON, BOTTINEAU, CASS, EDDY, GRAND FORKS, GRIGGS, PEMBINA, RANSOM, RICHLAND, SARGENT, WALSH | 1, 3, 5, 5, 6, 7, 7, 11, 14, 18, 25, 26, 27, 28, 29, 30, 35, 39, 41, 43, 44, 45 | Map |
| Cyperaceae | Carex rossii | , Ross' sedge | DUNN, MCLEAN, MERCER, OLIVER, SLOPE, STUTSMAN, WILLIAMS | 4, 5, 13, 24, 29, 33, 39, 41, 43 | Map |
| Cyperaceae | Carex rostrata | , beaked sedge | BENSON, BILLINGS, BOTTINEAU, BURLEIGH, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STARK, STUTSMAN, TOWNER, WALSH, WARD | 1, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 30, 31, 32, 42, 43, 45 | Map, Photo, Photo |
| Cyperaceae | Carex sartwellii | , Sartwell's sedge | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 25, 26, 27, 29, 31, 39, 41, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex saximontana | , Rocky Mountain sedge | BARNES, BURKE, BURLEIGH, DUNN, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RICHLAND, ROLETTE, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WILLIAMS | 1, 4, 5, 5, 7, 10, 11, 13, 14, 21, 24, 25, 26, 27, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex scirpoidea | , northern singlespike sedge | BURKE, DUNN, MCHENRY, MCKENZIE | 5, 5, 18, 24, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cyperaceae | Carex scoparia | , broom sedge | BARNES, BENSON, BOTTINEAU, GRAND FORKS, KIDDER, MORTON, MOUNTRAIL, STUTSMAN, WALSH, WELLS | 1, 3, 5, 7, 11, 13, 14, 15, 16, 27, 28, 29, 34, 39, 41, 43 | Map |
| Cyperaceae | Carex siccata | , dryspike sedge | BOTTINEAU, BURKE, CAVALIER, DIVIDE, DUNN, EDDY, MOUNTRAIL, STUTSMAN, WARD | 1, 4, 5, 5, 13, 17, 24, 28, 29, 35, 39, 41, 47 | Map, Photo |
| Cyperaceae | Carex simulata | , analogue sedge | BURKE, DIVIDE, MCHENRY | 7, 16, 29, 34, 35, 41, 43 | Map |
| Cyperaceae | Carex sprengelii | , Sprengel's sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Cyperaceae | Carex sterilis | , dioecious sedge | CASS, MCHENRY | 3, 6, 7, 15, 16, 29, 34, 39, 41, 43, 45 | Map |
| Cyperaceae | Carex stipata | , awlfruit sedge | BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, EDDY, GRAND FORKS, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WALSH | 1, 3, 4, 5, 6, 7, 8, 13, 14, 15, 16, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 43, 47 | Map, Photo |
| Cyperaceae | Carex straminea | , eastern straw sedge | BENSON, STUTSMAN | 3, 5, 7 | Map |
| Cyperaceae | Carex striata | , Walter's sedge | BARNES, STUTSMAN | 11 | Map |
| Cyperaceae | Carex stricta | , upright sedge | ADAMS, BARNES, BURLEIGH, CASS, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RENVILLE, RICHLAND, STARK, STUTSMAN, WALSH, WARD | 1, 4, 5, 7, 8, 13, 15, 16, 19, 24, 25, 26, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Cyperaceae | Carex sychnocephala | , manyhead sedge | BARNES, BENSON, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCINTOSH, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 7, 8, 11, 13, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Carex tenera | , quill sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 32, 39, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Carex tetanica | , rigid sedge | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, RANSOM, RICHLAND, SARGENT, SHERIDAN, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 18, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 44, 45, 47 | Map |
| Cyperaceae | Carex torreyi | , Torrey's sedge | BENSON, BOTTINEAU, BURKE, DUNN, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, RAMSEY, ROLETTE, STARK, WARD | 1, 4, 5, 7, 13, 14, 17, 18, 21, 24, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Cyperaceae | Carex tribuloides | , blunt broom sedge | GRAND FORKS, PEMBINA | 4, 18, 18, 43 | Map, Photo |
| Cyperaceae | Carex umbellata | , parasol sedge | RICHLAND | 7 | Map |
| Cyperaceae | Carex utriculata | , Northwest Territory sedge | BENSON, BILLINGS, BOTTINEAU, BURKE, DIVIDE, EDDY, GRAND FORKS, GRIGGS, KIDDER, MCHENRY, MCKENZIE, MOUNTRAIL, PIERCE, RENVILLE, RICHLAND, ROLETTE, STUTSMAN, TOWNER | 3, 4, 7, 29, 39, 41, 43, 45 | Map, Photo, Photo, Photo |
| Cyperaceae | Carex viridula | , little green sedge | BARNES, BOTTINEAU, BURKE, EDDY, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MERCER, MOUNTRAIL, RICHLAND, STUTSMAN | 1, 3, 4, 5, 6, 8, 11, 13, 15, 16, 18, 19, 27, 28, 29, 31, 39, 41, 43, 45, 45, 47 | Map |
| Cyperaceae | Carex vulpinoidea | , fox sedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, NELSON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cyperaceae | Carex xerantica | , whitescale sedge | BARNES, BILLINGS, BURKE, DIVIDE, EDDY, EMMONS, LAMOURE, MCHENRY, MCKENZIE, MERCER, MOUNTRAIL, OLIVER, PEMBINA, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 18, 19, 27, 29, 30, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Umbelliferae | Carum carvi | , caraway | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, LAMOURE, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN. Introduced. | 2, 3, 4, 5, 11, 13, 25, 26, 27, 28, 29, 30, 39, 40, 43, 45 | Map, Photo, Photo |
| Juglandaceae | Carya ovata | , shagbark hickory | RANSOM | 1, 29, 39, 43 | Map |
| Orobanchaceae | Castilleja miniata | , giant red Indian paintbrush | PEMBINA | 27, 29, 39, 41 | Map |
| Orobanchaceae | Castilleja sessiliflora | , downy paintedcup | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo |
| Gramineae | Catabrosa aquatica | , water whorlgrass | BARNES, BENSON, BOTTINEAU, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MERCER, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, ROLETTE, SLOPE, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map |
| Berberidaceae | Caulophyllum thalictroides | , blue cohosh | CASS, RICHLAND, ROLETTE | 1, 3, 5, 18, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Celastraceae | Celastrus scandens | , American bittersweet | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Cannabaceae | Celtis occidentalis | , common hackberry | BARNES, BENSON, BOTTINEAU, CASS, DICKEY, EDDY, EMMONS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, STUTSMAN, TOWNER, TRAILL, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 17, 19, 21, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 45, 47, 48 | Map, Photo, Photo, Photo |
| Gramineae | Cenchrus longispinus | , mat sandbur | ADAMS, BARNES, BOWMAN, BURLEIGH, CASS, EMMONS, GRANT, KIDDER, LOGAN, MCINTOSH, MORTON, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STUTSMAN | 1, 3, 4, 5, 6, 7, 11, 18, 24, 25, 26, 27, 29, 31, 32, 39, 41, 43, 43, 45 | Map, Photo, Photo, Photo |
| Compositae | Centaurea cyanus | , garden cornflower | BARNES, CASS, STUTSMAN. Introduced. | 1, 3, 5, 11, 18, 27, 29, 39, 40, 43, 47 | Map |
| Compositae | Centaurea diffusa | , diffuse knapweed | BILLINGS, GOLDEN VALLEY, GRANT, KIDDER, MCKENZIE, STUTSMAN. Introduced. | 36, 37, 40 | Map |
| Compositae | Centaurea scabiosa | , greater knapweed | BARNES, GOLDEN VALLEY, RANSOM, STUTSMAN. Introduced. | 5, 11, 25, 26, 27, 29, 39, 43, 47 | Map |
| Compositae | Centaurea solstitialis | , yellow star-thistle | GRAND FORKS. Introduced. | 1, 7, 29, 37, 39, 43, 47 | Map |
| Compositae | Centaurea stoebe | , spotted knapweed | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DIVIDE, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, ROLETTE, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 4, 5, 5, 6, 29, 31, 36, 37, 39, 40, 43, 44, 47 | Map |
| Caryophyllaceae | Cerastium arvense | , field chickweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Caryophyllaceae | Cerastium brachypodum | , shortstalk chickweed | BARNES, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CAVALIER, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 12, 15, 16, 17, 18, 19, 24, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map |
| Caryophyllaceae | Cerastium fontanum | , common mouse-ear chickweed | BARNES, CASS, DUNN, MCLEAN, RANSOM, SIOUX, SLOPE, STUTSMAN, WARD, WILLIAMS. Introduced. | 1, 4, 5, 7, 11, 13, 17, 24, 27, 29, 39, 40, 41, 43, 45, 47 | Map, Photo, Photo |
| Caryophyllaceae | Cerastium nutans | , nodding chickweed | BARNES, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EMMONS, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, PEMBINA, RICHLAND, ROLETTE, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 3, 4, 7, 11, 13, 14, 15, 16, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo |
| Ranunculaceae | Ceratocephala testiculata | , curveseed butterwort | BILLINGS, STARK. Introduced. | 5, 29, 39, 45, 45, 47 | Map |
| Ceratophyllaceae | Ceratophyllum demersum | , coon's tail | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Chaenactis douglasii | , Douglas' dustymaiden | BILLINGS, GOLDEN VALLEY | 5, 7, 29, 32, 33, 34, 35, 39, 41, 43, 47 | Map |
| Plantaginaceae | Chaenorhinum minus | , dwarf snapdragon | BARNES. Introduced. | 1, 5, 11, 29, 39, 41, 43 | Map |
| Rosaceae | Chamaerhodos erecta | , little rose | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, ROLETTE, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 8, 11, 13, 17, 17, 18, 18, 19, 24, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo |
| Euphorbiaceae | Chamaesyce geyeri | , Geyer's sandmat | BILLINGS, BOTTINEAU, CASS, MCHENRY, MERCER, MORTON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, WARD | 1, 3, 4, 6, 7, 17, 21, 25, 26, 27, 28, 29, 30, 32, 39, 41, 43, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Euphorbiaceae | Chamaesyce glyptosperma | , ribseed sandmat | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 6, 7, 8, 11, 13, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Euphorbiaceae | Chamaesyce maculata | , spotted sandmat | BARNES, CASS, MCKENZIE, MORTON | 1, 5, 18, 27, 29, 39, 41, 43, 45, 47 | Map |
| Euphorbiaceae | Chamaesyce missurica | , prairie sandmat | BILLINGS, GRANT, MERCER, MORTON, SIOUX, SLOPE | 1, 12, 27, 29, 32, 39, 41, 43, 45, 47 | Map |
| Euphorbiaceae | Chamaesyce nutans | , eyebane | CASS | 1, 29, 39, 41, 43, 47 | Map |
| Euphorbiaceae | Chamaesyce serpens | , matted sandmat | BARNES, BILLINGS, BOTTINEAU, KIDDER, MCLEAN, MORTON, RANSOM, RICHLAND, SARGENT, SIOUX | 1, 3, 4, 11, 18, 26, 27, 28, 29, 32, 39, 41, 43, 47 | Map, Photo |
| Euphorbiaceae | Chamaesyce serpyllifolia | , thymeleaf sandmat | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, TRAILL, WARD | 1, 2, 3, 4, 6, 7, 10, 11, 13, 14, 17, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Euphorbiaceae | Chamaesyce stictospora | , slimseed sandmat | KIDDER, MCKENZIE | 1, 5, 24, 29, 39, 41, 43, 47 | Map |
| Onagraceae | Chamerion angustifolium | , fireweed | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo |
| Polypodiaceae | Cheilanthes feei | , slender lipfern | BILLINGS, DUNN | 29, 34, 35, 39, 41, 43 | Map |
| Amaranthaceae | Chenopodium album | , lambsquarters | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 1, 2, 2, 3, 3, 4, 5, 5, 6, 6, 7, 7, 8, 9, 10, 11, 11, 12, 13, 13, 14, 14, 17, 18, 19, 19, 21, 21, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 30, 30, 31, 32, 32, 39, 39, 41, 41, 42, 43, 44, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Chenopodium berlandieri | , pitseed goosefoot | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 1, 2, 3, 4, 5, 6, 7, 11, 11, 13, 17, 18, 19, 21, 24, 25, 26, 26, 27, 27, 28, 29, 30, 31, 39, 41, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Chenopodium capitatum | , blite goosefoot | GRAND FORKS, PIERCE | 4, 7, 29, 39 | Map, Photo |
| Amaranthaceae | Chenopodium desiccatum | , aridland goosefoot | BARNES, BENSON, BILLINGS, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, WALSH, WELLS, WILLIAMS | 1, 4, 5, 11, 18, 21, 26, 31, 41, 45, 45 | Map, Photo |
| Amaranthaceae | Chenopodium foliosum | , leafy goosefoot | BURLEIGH, CAVALIER, GRAND FORKS, PEMBINA, RENVILLE. Introduced. | 4, 7, 27, 29, 30, 39, 43, 43, 47 | Map, Photo |
| Amaranthaceae | Chenopodium fremontii | , Fremont's goosefoot | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MOUNTRAIL, OLIVER, RANSOM, RICHLAND, SARGENT, SHERIDAN, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 11, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 29, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Amaranthaceae | Chenopodium glaucum | , oakleaf goosefoot | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Chenopodium incanum | , mealy goosefoot | SLOPE | 39 | Map |
| Amaranthaceae | Chenopodium pratericola | , desert goosefoot | BARNES, BENSON, BILLINGS, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, MCHENRY, MCKENZIE, MCLEAN, MORTON, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WELLS, WILLIAMS | 2, 8, 12, 19, 21, 24, 29, 39, 41, 43, 45, 47 | Map |
| Amaranthaceae | Chenopodium rubrum | , red goosefoot | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 15, 16, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Chenopodium simplex | , mapleleaf goosefoot | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Chenopodium standleyanum | , Standley's goosefoot | BARNES, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STUTSMAN, WARD, WILLIAMS | 1, 2, 4, 5, 7, 11, 19, 21, 25, 26, 27, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Amaranthaceae | Chenopodium subglabrum | , smooth goosefoot | BILLINGS, SLOPE | 5, 7, 18, 27, 29, 34, 39, 41, 43, 45, 47 | Map |
| Gramineae | Chloris virgata | , feather fingergrass | BURLEIGH, MORTON | 1, 5, 29, 34, 39, 41, 43, 45 | Map |
| Cruciferae | Chorispora tenella | , crossflower | BILLINGS, EMMONS, GOLDEN VALLEY, KIDDER, LOGAN, MCINTOSH, MCKENZIE, SIOUX, WILLIAMS. Introduced. | 1, 4, 5, 7, 12, 13, 29, 31, 32, 39, 40, 43, 47 | Map, Photo |
| Compositae | Chrysothamnus viscidiflorus | , yellow rabbitbrush | SIOUX, SLOPE | 4 | Map, Photo, Photo |
| Compositae | Cichorium intybus | , chicory | BENSON, CASS. Introduced. | 1, 3, 5, 7, 27, 29, 39, 40, 43 | Map |
| Umbelliferae | Cicuta bulbifera | , bulblet-bearing water hemlock | BOTTINEAU, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, WALSH | 1, 3, 4, 5, 6, 8, 15, 16, 19, 25, 26, 27, 29, 30, 31, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo |
| Umbelliferae | Cicuta maculata | , spotted water hemlock | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Cinna arundinacea | , sweet woodreed | BOTTINEAU, BURKE, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WILLIAMS | 1, 16, 25, 26, 29, 34, 39, 41, 43 | Map |
| Gramineae | Cinna latifolia | , drooping woodreed | BOTTINEAU, BURKE, CASS, EDDY, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, WALSH, WILLIAMS | 1, 3, 4, 5, 7, 7, 8, 13, 16, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45 | Map, Photo |
| Onagraceae | Circaea alpina | , small enchanter's nightshade | BARNES, BENSON, BOTTINEAU, CAVALIER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT | 1, 3, 5, 11, 26, 27, 28, 29, 30, 34, 35, 39, 41, 43, 45 | Map |
| Onagraceae | Circaea lutetiana | , broadleaf enchanter's nightshade | BARNES, BENSON, BOTTINEAU, CASS, DICKEY, EDDY, GRAND FORKS, GRIGGS, LAMOURE, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, WALSH, WELLS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 14, 19, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Compositae | Cirsium altissimum | , tall thistle | BENSON, BOTTINEAU, CASS, GRAND FORKS, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 4, 5, 7, 7, 10, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Compositae | Cirsium arvense | , Canada thistle | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 37, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Cirsium canescens | , prairie thistle | GRAND FORKS, MCLEAN | 1, 7, 18, 29, 39, 41, 43 | Map |
| Compositae | Cirsium discolor | , field thistle | BOWMAN | 7, 29 | Map |
| Compositae | Cirsium flodmanii | , Flodman's thistle | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 17, 19, 21, 24, 25, 26, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Cirsium muticum | , swamp thistle | BOTTINEAU, CASS, GRAND FORKS, PEMBINA, ROLETTE | 1, 3, 5, 5, 7, 18, 27, 28, 29, 34, 35, 39, 41, 43, 45, 47 | Map |
| Compositae | Cirsium palustre | , marsh thistle | MERCER. Introduced. | 4 | Map, Photo |
| Compositae | Cirsium undulatum | , wavyleaf thistle | BARNES, BILLINGS, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 18, 19, 24, 26, 27, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Cirsium vulgare | , bull thistle | BARNES, BENSON, BOTTINEAU, CASS, DICKEY, DIVIDE, GRAND FORKS, LAMOURE, MCLEAN, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STUTSMAN, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 7, 7, 10, 11, 13, 14, 17, 18, 21, 25, 26, 27, 28, 29, 30, 36, 39, 40, 42, 43, 44, 47 | Map, Photo |
| Ranunculaceae | Clematis columbiana | , rock clematis | DUNN, MCKENZIE, STARK | 5, 5, 7, 24, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Ranunculaceae | Clematis ligusticifolia | , western white clematis | ADAMS, BILLINGS, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, OLIVER, PEMBINA, RICHLAND, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 13, 18, 24, 27, 29, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Clematis virginiana | , devil's darning needles | BARNES, BILLINGS, BURLEIGH, CASS, DUNN, EMMONS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH | 1, 3, 4, 6, 7, 7, 11, 14, 18, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cruciferae | Cleome serrulata | , Rocky Mountain beeplant | BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo |
| Plantaginaceae | Collinsia parviflora | , maiden blue eyed Mary | BILLINGS, DUNN, SLOPE | 1, 5, 5, 7, 24, 27, 29, 32, 33, 34, 35, 39, 41, 43 | Map |
| Polemoniaceae | Collomia linearis | , tiny trumpet | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Santalaceae | Comandra umbellata | , bastard toadflax | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Comarum palustre | , purple marshlocks | BOTTINEAU, GRAND FORKS, MCHENRY, RENVILLE | 4, 5, 6, 7, 15, 16, 29, 34, 35, 39, 41, 43, 47 | Map, Photo |
| Commelinaceae | Commelina communis | , Asiatic dayflower | CASS, DICKEY, SARGENT. Introduced. | 1, 5, 29, 39, 40, 43 | Map |
| Umbelliferae | Conium maculatum | , poison hemlock | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, CAVALIER, EDDY, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, MCHENRY, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, WALSH, WARD, WELLS. Introduced. | 1, 5, 27, 29, 39, 40, 43, 45 | Map |
| Cruciferae | Conringia orientalis | , hare's ear mustard | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, GOLDEN VALLEY, GRAND FORKS, MCHENRY, MCKENZIE, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS. Introduced. | 1, 3, 4, 5, 6, 7, 7, 8, 11, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 39, 43, 45, 47 | Map |
| Ranunculaceae | Consolida ajacis | , doubtful knight's-spur | BILLINGS, MCINTOSH, STARK, WILLIAMS. Introduced. | 1, 5, 24, 29, 31, 39, 43, 47 | Map |
| Convolvulaceae | Convolvulus arvensis | , field bindweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 37, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Conyza canadensis | , Canadian horseweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Conyza ramosissima | , dwarf horseweed | BILLINGS, BURLEIGH, GRANT, RICHLAND, WARD | 1, 3, 5, 7, 17, 25, 26, 27, 29, 32, 39, 41, 43, 47 | Map |
| Orchidaceae | Corallorhiza maculata | , summer coralroot | BOTTINEAU, DUNN, GRAND FORKS, MCKENZIE, PEMBINA, ROLETTE, STARK | 1, 3, 4, 5, 6, 7, 14, 24, 27, 28, 29, 30, 39, 41, 42 | Map, Photo, Photo, Photo |
| Orchidaceae | Corallorhiza striata | , hooded coralroot | BOTTINEAU, PEMBINA, ROLETTE, STARK | 1, 5, 24, 27, 29, 33, 34, 39, 41, 43, 47 | Map, Photo, Photo |
| Orchidaceae | Corallorhiza trifida | , yellow coralroot | BENSON, BOTTINEAU, DUNN, PEMBINA, ROLETTE | 1, 5, 6, 18, 29, 33, 34, 39, 41, 42, 43, 47 | Map, Photo, Photo |
| Compositae | Coreopsis tinctoria | , golden tickseed | ADAMS, BOTTINEAU, BOWMAN, CASS, DIVIDE, GOLDEN VALLEY, GRANT, HETTINGER, MORTON, RICHLAND, SLOPE | 1, 3, 4, 5, 5, 13, 18, 25, 26, 27, 28, 29, 32, 39, 41, 43, 47 | Map, Photo |
| Umbelliferae | Coriandrum sativum | , coriander | CASS. Introduced. | 5, 29, 39, 43 | Map |
| Amaranthaceae | Corispermum americanum | , American bugseed | BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DUNN, GRANT, HETTINGER, MCHENRY, MCKENZIE, MERCER, MORTON, PEMBINA, PIERCE, RANSOM, RICHLAND, STARK, WILLIAMS | 1, 3, 5, 13, 18, 24, 25, 26, 27, 28, 29, 30, 32, 39, 43, 45, 47 | Map |
| Amaranthaceae | Corispermum nitidum | , shiny bugseed | MCHENRY, RANSOM, RICHLAND | 1, 18, 25, 26, 27 | Map |
| Amaranthaceae | Corispermum villosum | , hairy bugseed | BENSON, BILLINGS, BURLEIGH, CASS, GOLDEN VALLEY, GRAND FORKS, GRANT, MCHENRY, PIERCE, RANSOM, RICHLAND, STARK, WILLIAMS | 14, 18, 27, 29, 39, 43, 45, 47 | Map |
| Cornaceae | Cornus canadensis | , bunchberry dogwood | BOTTINEAU, CAVALIER, PEMBINA, ROLETTE | 1, 3, 5, 18, 27, 28, 29, 33, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo |
| Cornaceae | Cornus foemina | , stiff dogwood | BARNES, CASS, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 3, 11, 21, 26, 41 | Map |
| Cornaceae | Cornus racemosa | , gray dogwood | BARNES, CASS, CAVALIER, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN | 4, 7, 25, 27, 29, 39, 43, 45 | Map, Photo |
| Cornaceae | Cornus sericea | , redosier dogwood | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Papaveraceae | Corydalis aurea | , scrambled eggs | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WARD, WELLS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Papaveraceae | Corydalis sempervirens | , rock harlequin | RAMSEY | 45 | Map |
| Betulaceae | Corylus americana | , American hazelnut | BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MORTON, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STEELE, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 8, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47, 48 | Map, Photo, Photo, Photo, Photo, Photo |
| Betulaceae | Corylus cornuta | , beaked hazelnut | BARNES, BENSON, BOTTINEAU, CAVALIER, DUNN, GRAND FORKS, HETTINGER, PEMBINA, ROLETTE, SLOPE, WALSH, WARD | 1, 3, 4, 5, 6, 7, 11, 14, 18, 24, 27, 28, 29, 30, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Rosaceae | Crataegus chrysocarpa | , fireberry hawthorn | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 13, 14, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Crataegus mollis | , downy hawthorn | CASS, GRAND FORKS, RANSOM, RICHLAND, STARK, WARD | 1, 4, 5, 7, 18, 27, 29, 34, 39, 41, 43, 45 | Map |
| Rosaceae | Crataegus succulenta | , fleshy hawthorn | BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, KIDDER, MCKENZIE, MORTON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, STARK, WARD | 1, 3, 4, 5, 7, 17, 18, 24, 26, 29, 31, 39, 41, 43, 43, 45, 48 | Map |
| Compositae | Crepis capillaris | , smooth hawksbeard | BURKE, CASS, MOUNTRAIL. Introduced. | 4, 18, 29, 39, 40, 43, 47 | Map, Photo |
| Compositae | Crepis occidentalis | , largeflower hawksbeard | BILLINGS, BOWMAN, DUNN, MCKENZIE, MOUNTRAIL, SLOPE, STARK, WILLIAMS | 1, 5, 13, 24, 27, 29, 32, 39, 41, 43 | Map |
| Compositae | Crepis runcinata | , fiddleleaf hawksbeard | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Crepis tectorum | , narrowleaf hawksbeard | BOTTINEAU, CASS, CAVALIER, DIVIDE, EMMONS, LAMOURE, MOUNTRAIL, PEMBINA, STARK, STUTSMAN, WALSH. Introduced. | 1, 3, 4, 5, 6, 18, 24, 27, 28, 29, 30, 39, 40, 43, 47 | Map, Photo, Photo |
| Boraginaceae | Cryptantha cana | , mountain cryptantha | CASS | 45 | Map |
| Boraginaceae | Cryptantha celosioides | , buttecandle | ADAMS, BILLINGS, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 7, 12, 13, 13, 17, 18, 24, 27, 29, 31, 32, 39, 41, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Boraginaceae | Cryptantha minima | , little cryptantha | SLOPE | 5, 32, 39 | Map |
| Boraginaceae | Cryptantha torreyana | , Torrey's cryptantha | BILLINGS, BOWMAN, SIOUX | 5, 7, 27, 29, 32, 33, 34, 35, 39, 41, 43 | Map |
| Umbelliferae | Cryptotaenia canadensis | , Canadian honewort | BARNES, CASS, GRAND FORKS, MORTON, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH, WARD | 1, 3, 5, 6, 7, 11, 14, 17, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45 | Map |
| Convolvulaceae | Cuscuta approximata | , alfalfa dodder | BOWMAN, STUTSMAN. Introduced. | 5, 27, 29, 32, 39, 40 | Map |
| Convolvulaceae | Cuscuta cephalanthi | , buttonbush dodder | BARNES, BOTTINEAU, EMMONS, LOGAN, MCHENRY, MCINTOSH, PEMBINA, RANSOM, ROLETTE, TOWNER | 1, 3, 5, 5, 18, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43 | Map |
| Convolvulaceae | Cuscuta coryli | , hazel dodder | BARNES, BOTTINEAU, CASS, EMMONS, LOGAN, MCKENZIE, RAMSEY, RANSOM, RICHLAND, STUTSMAN, WARD | 1, 3, 5, 11, 17, 18, 21, 24, 25, 26, 27, 28, 29, 31, 39, 41, 43 | Map |
| Convolvulaceae | Cuscuta cuspidata | , cusp dodder | MCHENRY | 5, 29, 39, 43 | Map |
| Convolvulaceae | Cuscuta epithymum | , clover dodder | BOWMAN, BURKE, STUTSMAN. Introduced. | 5, 11, 27, 29, 39, 40, 43 | Map |
| Convolvulaceae | Cuscuta glomerata | , rope dodder | RANSOM, RICHLAND | 1, 5, 25, 26, 29, 35, 39, 41, 43 | Map |
| Convolvulaceae | Cuscuta gronovii | , scaldweed | BARNES, BOTTINEAU, BURKE, BURLEIGH, CASS, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TRAILL, WALSH, WARD | 1, 1, 3, 4, 5, 6, 7, 11, 13, 14, 17, 18, 24, 25, 26, 27, 28, 29, 30, 31, 35, 39, 41, 43, 44 | Map, Photo |
| Convolvulaceae | Cuscuta indecora | , bigseed alfalfa dodder | BARNES, BENSON, BURKE, DUNN, EMMONS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, PEMBINA | 1, 3, 4, 5, 11, 18, 24, 27, 29, 31, 39, 41, 43 | Map, Photo |
| Convolvulaceae | Cuscuta megalocarpa | , bigfruit dodder | BENSON, CASS, EMMONS, GOLDEN VALLEY, PEMBINA, ROLETTE, WARD | 5, 29, 39, 41, 43 | Map |
| Convolvulaceae | Cuscuta pentagona | , fiveangled dodder | ADAMS, BARNES, BILLINGS, BOTTINEAU, CASS, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCINTOSH, MCLEAN, PIERCE, RANSOM, RICHLAND, SARGENT, STARK, TRAILL, WARD | 1, 3, 4, 5, 5, 7, 11, 17, 18, 24, 25, 26, 27, 27, 28, 28, 29, 31, 32, 39, 41, 43 | Map, Photo |
| Convolvulaceae | Cuscuta plattensis | , prairie dodder | BENSON, ROLETTE | 5, 18, 43 | Map |
| Convolvulaceae | Cuscuta polygonorum | , smartweed dodder | BURLEIGH, EMMONS, WARD | 1, 5, 29, 31, 34, 35, 39, 41, 43 | Map |
| Compositae | Cyclachaena xanthiifolia | , giant sumpweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Cycloloma atriplicifolium | , winged pigweed | BOTTINEAU, CASS, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MERCER, RANSOM, RICHLAND, SARGENT | 1, 3, 4, 5, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Umbelliferae | Cymopterus acaulis | , plains springparsley | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 24, 27, 28, 29, 31, 32, 39, 41, 43, 43, 45 | Map, Photo |
| Boraginaceae | Cynoglossum officinale | , gypsyflower | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, EDDY, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, MCHENRY, MCKENZIE, MCLEAN, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 3, 4, 5, 6, 7, 8, 11, 13, 14, 19, 24, 25, 26, 27, 29, 31, 36, 39, 40, 43, 45 | Map, Photo, Photo, Photo |
| Boraginaceae | Cynoglossum virginianum | , wild comfrey | BOTTINEAU, DUNN, ROLETTE | 5, 5, 6, 7, 24, 27, 29, 34, 39, 41, 43 | Map |
| Cyperaceae | Cyperus acuminatus | , tapertip flatsedge | BARNES, BENSON, CASS, DIVIDE, EMMONS, KIDDER, LOGAN, MCINTOSH, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN | 1, 3, 5, 6, 7, 11, 13, 15, 16, 18, 25, 26, 27, 29, 31, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Cyperus bipartitus | , slender flatsedge | CASS, RANSOM, STUTSMAN | 1, 11, 15, 16, 18, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Cyperus diandrus | , umbrella flatsedge | RANSOM, RICHLAND, SARGENT | 1, 15, 16, 26, 29, 34, 35, 39, 41, 43 | Map |
| Cyperaceae | Cyperus erythrorhizos | , redroot flatsedge | BARNES, BURLEIGH, CASS, DICKEY, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, OLIVER, RICHLAND, SARGENT, STUTSMAN | 1, 2, 4, 5, 6, 7, 11, 15, 16, 18, 25, 26, 27, 29, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cyperaceae | Cyperus esculentus | , yellow nutsedge | CASS, EDDY, GRAND FORKS, LAMOURE, RANSOM, RICHLAND, SARGENT. Introduced. | 1, 5, 8, 15, 16, 19, 25, 26, 27, 29, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Cyperus odoratus | , fragrant flatsedge | BARNES, CASS, GRAND FORKS, RANSOM, RICHLAND, SARGENT, STUTSMAN, TRAILL | 1, 3, 4, 5, 5, 6, 7, 11, 15, 16, 16, 26, 27, 29, 35, 39, 41, 43 | Map, Photo, Photo |
| Cyperaceae | Cyperus schweinitzii | , Schweinitz's flatsedge | BENSON, BOTTINEAU, CASS, EDDY, EMMONS, FOSTER, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MERCER, MORTON, NELSON, PEMBINA, RANSOM, RICHLAND, SARGENT, WILLIAMS | 1, 3, 5, 6, 7, 8, 9, 13, 18, 25, 26, 27, 28, 29, 30, 31, 39, 41, 41, 43, 44, 45 | Map |
| Cyperaceae | Cyperus squarrosus | , bearded flatsedge | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MORTON, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 11, 13, 15, 16, 17, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Orchidaceae | Cypripedium candidum | , white lady's slipper | BENSON, CASS, DICKEY, EDDY, GRAND FORKS, GRIGGS, LAMOURE, NELSON, RANSOM, RICHLAND, ROLETTE, SARGENT, WALSH | 1, 2, 3, 5, 6, 8, 9, 15, 16, 19, 25, 26, 27, 29, 34, 35, 39, 41, 43, 45, 47 | Map |
| Orchidaceae | Cypripedium parviflorum | , lesser yellow lady's slipper | BENSON, BOTTINEAU, CAVALIER, DUNN, EDDY, GRAND FORKS, GRIGGS, MCHENRY, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH | 1, 3, 4, 5, 5, 6, 7, 7, 8, 10, 14, 15, 16, 18, 21, 25, 26, 27, 28, 29, 34, 35, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Orchidaceae | Cypripedium reginae | , showy lady's slipper | BENSON, CAVALIER, EDDY, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 5, 7, 15, 19, 25, 26, 27, 29, 30, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Orchidaceae | Cypripedium ×andrewsii | , Andrews' lady's-slipper | NELSON, RANSOM | 6, 29, 39, 41, 43 | Map |
| Polypodiaceae | Cystopteris fragilis | , brittle bladderfern | ADAMS, BARNES, BENSON, BILLINGS, BURKE, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 8, 11, 13, 17, 18, 19, 22, 23, 23, 24, 25, 26, 27, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Gramineae | Dactylis glomerata | , orchardgrass | BOTTINEAU, BURLEIGH, CASS, MERCER, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN. Introduced. | 1, 3, 7, 18, 21, 26, 27, 28, 29, 39, 40, 42, 43 | Map |
| Orchidaceae | Dactylorhiza viridis | , longbract frog orchid | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, GRAND FORKS, MCLEAN, MORTON, OLIVER, PEMBINA, ROLETTE, STARK, STEELE | 1, 3, 4, 5, 6, 7, 8, 14, 15, 16, 18, 19, 24, 27, 28, 29, 39, 42, 43, 45, 47 | Map, Photo, Photo |
| Leguminosae | Dalea candida | , white prairie clover | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Dalea enneandra | , nineanther prairie clover | BILLINGS, GRANT, MCKENZIE, MERCER, MORTON, SIOUX | 1, 3, 5, 5, 6, 7, 18, 27, 29, 33, 34, 35, 39, 41, 43 | Map |
| Leguminosae | Dalea leporina | , foxtail prairie clover | CASS, DICKEY, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN | 1, 2, 5, 7, 18, 25, 26, 27, 29, 31, 39, 41, 43 | Map |
| Leguminosae | Dalea purpurea | , purple prairie clover | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Dalea villosa | , silky prairie clover | BENSON, BOTTINEAU, EDDY, EMMONS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MERCER, MORTON, PIERCE, RANSOM, RICHLAND, SARGENT, WILLIAMS | 1, 4, 5, 7, 8, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 43, 44, 45, 45 | Map |
| Gramineae | Danthonia spicata | , poverty oatgrass | BURKE, DIVIDE, DUNN, WILLIAMS | 1, 4, 5, 13, 18, 24, 29, 39, 41, 43, 45 | Map |
| Rosaceae | Dasiphora fruticosa | , shrubby cinquefoil | BILLINGS, CASS, DUNN, GOLDEN VALLEY, GRANT, MCKENZIE, SLOPE | 1, 3, 4, 5, 6, 7, 18, 24, 27, 29, 32, 39, 41, 43, 43, 45, 45, 47 | Map, Photo, Photo, Photo |
| Solanaceae | Datura stramonium | , jimsonweed | CASS, PEMBINA, RANSOM, RICHLAND, SARGENT, TRAILL. Introduced. | 1, 5, 25, 26, 27, 29, 39, 40, 43 | Map |
| Solanaceae | Datura wrightii | , sacred thorn-apple | PEMBINA. Introduced. | 30 | Map |
| Umbelliferae | Daucus carota | , Queen Anne's lace | BENSON, BOTTINEAU, CASS, GRAND FORKS, NELSON, RAMSEY, ROLETTE, STARK. Introduced. | 1, 3, 4, 5, 7, 7, 21, 27, 29, 39, 40, 41, 43, 45 | Map, Photo |
| Ranunculaceae | Delphinium bicolor | , little larkspur | BILLINGS, BOWMAN, BURKE, MCKENZIE, WILLIAMS | 1, 3, 7, 13, 18, 24, 27, 29, 32, 39, 41, 43, 45, 47 | Map |
| Ranunculaceae | Delphinium carolinianum | , Carolina larkspur | BARNES, BILLINGS, BURKE, CASS, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, NELSON, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH | 1, 2, 3, 5, 6, 7, 7, 8, 9, 11, 14, 18, 25, 26, 27, 29, 31, 39, 41, 43, 45, 47 | Map |
| Gramineae | Deschampsia cespitosa | , tufted hairgrass | BENSON, BOTTINEAU, BURKE, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, PEMBINA, PIERCE, STUTSMAN, WALSH, WILLIAMS | 1, 4, 5, 5, 6, 7, 8, 9, 13, 15, 16, 19, 27, 28, 29, 30, 31, 39, 41, 43, 43, 45 | Map |
| Gramineae | Deschampsia flexuosa | , wavy hairgrass | BENSON | 18, 29, 45 | Map |
| Cruciferae | Descurainia incana | , mountain tansymustard | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 7, 8, 11, 13, 14, 17, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Cruciferae | Descurainia pinnata | , western tansymustard | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Cruciferae | Descurainia sophia | , herb sophia | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 7, 8, 11, 12, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Desmanthus illinoensis | , Illinois bundleflower | EMMONS, RAMSEY, SARGENT | 1, 3, 7, 15, 16, 18, 21, 25, 26, 27, 29, 31, 33, 34, 35, 39, 41, 43 | Map |
| Leguminosae | Desmodium canadense | , showy ticktrefoil | BARNES, BOTTINEAU, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, LAMOURE, MCLEAN, MORTON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT | 1, 2, 3, 5, 6, 7, 8, 11, 15, 16, 18, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45 | Map |
| Leguminosae | Desmodium glutinosum | , pointedleaf ticktrefoil | CASS, MCLEAN, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 6, 25, 26, 27, 29, 30, 39, 41, 43, 45 | Map |
| Leguminosae | Desmodium illinoense | , Illinois ticktrefoil | GRAND FORKS, RAMSEY, RICHLAND | 4, 21 | Map, Photo, Photo |
| Caryophyllaceae | Dianthus plumarius | , feathered pink | WARD. Introduced. | 29, 39, 43 | Map |
| Papaveraceae | Dicentra cucullaria | , dutchman's breeches | GRAND FORKS, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 7, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Gramineae | Dichanthelium acuminatum | , tapered rosette grass | BOTTINEAU, CASS, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, RANSOM, RICHLAND, SARGENT | 1, 5, 5, 25, 26, 27, 28, 29, 31, 39, 41 | Map |
| Gramineae | Dichanthelium leibergii | , Leiberg's panicum | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 14, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 43, 45, 45 | Map, Photo, Photo, Photo |
| Gramineae | Dichanthelium linearifolium | , slimleaf panicgrass | BURLEIGH, CASS, MERCER, MORTON, STUTSMAN | 1, 27, 29, 39, 41, 45 | Map |
| Gramineae | Dichanthelium oligosanthes | , Heller's rosette grass | BOWMAN, CASS, GRANT, RANSOM, RICHLAND, SARGENT, SIOUX, TOWNER | 1, 3, 5, 5, 6, 12, 25, 26, 27, 29, 32, 39, 41, 43 | Map |
| Gramineae | Dichanthelium villosissimum | , whitehair rosette grass | RANSOM, RICHLAND, SARGENT | 1, 5, 5, 25, 27, 29, 33, 34, 35, 43 | Map |
| Gramineae | Dichanthelium wilcoxianum | , fall rosette grass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, NELSON, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN | 1, 3, 5, 5, 6, 7, 8, 9, 11, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 43, 43, 44, 45, 45 | Map |
| Caprifoliaceae | Diervilla lonicera | , northern bush honeysuckle | CAVALIER | 5, 29, 34, 35, 39, 41, 43 | Map |
| Gramineae | Digitaria ischaemum | , smooth crabgrass | BARNES, BOTTINEAU, BURLEIGH, CASS, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, RANSOM, RICHLAND, SARGENT, STARK, TRAILL, WILLIAMS. Introduced. | 1, 3, 5, 7, 11, 13, 24, 25, 26, 27, 28, 29, 31, 39, 43, 45 | Map |
| Gramineae | Digitaria sanguinalis | , hairy crabgrass | CASS, CAVALIER, GRAND FORKS, PIERCE, RANSOM, RICHLAND, SARGENT, STUTSMAN. Introduced. | 1, 5, 6, 11, 25, 26, 27, 29, 39, 43 | Map |
| Thymelaeaceae | Dirca palustris | , eastern leatherwood | CAVALIER | 5, 29, 34, 35, 39, 41, 43 | Map |
| Gramineae | Distichlis spicata | , saltgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Primulaceae | Dodecatheon meadia | , pride of Ohio | BOTTINEAU, BOWMAN, MOUNTRAIL, PIERCE, ROLETTE, WARD | 5, 17, 27, 28 | Map |
| Primulaceae | Dodecatheon pulchellum | , darkthroat shootingstar | BOTTINEAU, BOWMAN, BURKE, DIVIDE, MOUNTRAIL, RENVILLE, ROLETTE, WILLIAMS | 1, 3, 4, 5, 5, 13, 18, 18, 29, 32, 39, 41, 44, 45, 47 | Map, Photo |
| Compositae | Doellingeria umbellata | , parasol whitetop | BARNES, BENSON, BOTTINEAU, CAVALIER, EDDY, FOSTER, GRIGGS, MCHENRY, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT | 1, 3, 4, 5, 6, 7, 8, 11, 15, 16, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45, 47 | Map, Photo |
| Cruciferae | Draba albertina | , slender draba | ADAMS | 20 | Map |
| Cruciferae | Draba nemorosa | , woodland draba | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Cruciferae | Draba reptans | , Carolina draba | ADAMS, BILLINGS, BURLEIGH, CASS, DICKEY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 7, 11, 12, 13, 17, 18, 20, 24, 25, 26, 27, 29, 31, 32, 39, 41, 43, 45, 47 | Map |
| Labiatae | Dracocephalum parviflorum | , American dragonhead | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DIVIDE, DUNN, EDDY, HETTINGER, KIDDER, MCKENZIE, MORTON, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, STARK, STUTSMAN, TRAILL, WALSH, WARD, WELLS | 1, 3, 4, 5, 5, 6, 7, 8, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 43, 45 | Map, Photo, Photo, Photo |
| Labiatae | Dracocephalum thymiflorum | , thymeleaf dragonhead | HETTINGER, STARK, WALSH. Introduced. | 5, 18, 24, 27, 29, 39, 43 | Map |
| Compositae | Dracopis amplexicaulis | , clasping coneflower | LOGAN | 1, 29, 39, 41, 43, 47 | Map |
| Droseraceae | Drosera rotundifolia | , roundleaf sundew | BOTTINEAU | 4, 5, 7, 15, 27, 28, 29, 33, 34, 35, 39, 41, 43, 47 | Map, Photo |
| Polypodiaceae | Dryopteris carthusiana | , spinulose woodfern | CASS, CAVALIER, PEMBINA, RANSOM, RICHLAND | 1, 5, 5, 6, 15, 16, 22, 23, 25, 26, 27, 29, 30, 33, 34, 35, 39, 41, 42, 43, 45, 45, 47 | Map, Photo |
| Polypodiaceae | Dryopteris cristata | , crested woodfern | BOTTINEAU, CASS, CAVALIER, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 6, 7, 15, 16, 22, 23, 25, 26, 27, 29, 30, 33, 34, 35, 39, 41, 42, 43, 45, 47 | Map |
| Polypodiaceae | Dryopteris ×uliginosa | , spinulose crested woodfern | PEMBINA | 29, 39 | Map |
| Amaranthaceae | Dysphania botrys | , Jerusalem oak goosefoot | CASS, RANSOM. Introduced. | 1, 3, 27, 29, 39, 43, 45, 47 | Map |
| Compositae | Dyssodia papposa | , fetid marigold | BILLINGS, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRANT, MCKENZIE, MERCER, MORTON, SIOUX, SLOPE, STARK | 1, 3, 4, 5, 6, 12, 18, 24, 27, 29, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Compositae | Echinacea angustifolia | , blacksamson echinacea | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Echinacea pallida | , pale purple coneflower | BOWMAN, MCKENZIE, MERCER, RANSOM, SLOPE, WILLIAMS | 4, 7, 18, 45 | Map, Photo |
| Gramineae | Echinochloa crus-galli | , barnyardgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MORTON, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Echinochloa muricata | , rough barnyardgrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 8, 12, 15, 16, 19, 21, 24, 28, 29, 31, 39, 41, 43, 44, 45, 45 | Map, Photo |
| Cucurbitaceae | Echinocystis lobata | , wild cucumber | ADAMS, BARNES, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 11, 13, 14, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Elaeagnaceae | Elaeagnus angustifolia | , Russian olive | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 2, 4, 5, 7, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Elaeagnaceae | Elaeagnus commutata | , silverberry | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Elatinaceae | Elatine rubella | , southwestern waterwort | BENSON, CASS, DICKEY, HETTINGER, LAMOURE, LOGAN, MORTON, WARD | 1, 2, 3, 4, 5, 15, 16, 17, 27, 29, 31, 33, 34, 35, 39, 41, 43, 43, 45, 47 | Map, Photo |
| Cyperaceae | Eleocharis acicularis | , needle spikerush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Cyperaceae | Eleocharis compressa | , flatstem spikerush | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, EDDY, GRANT, LAMOURE, MCHENRY, MOUNTRAIL, RANSOM, RICHLAND, ROLETTE, SIOUX, SLOPE, STUTSMAN, TRAILL, WILLIAMS | 1, 2, 4, 5, 6, 7, 11, 13, 15, 16, 18, 25, 26, 27, 28, 29, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Eleocharis elliptica | , elliptic spikerush | MCHENRY, WARD | 39, 47 | Map |
| Cyperaceae | Eleocharis engelmannii | , Engelmann's spikerush | BENSON, BOTTINEAU, BURKE, CASS, DIVIDE, EMMONS, GRAND FORKS, LAMOURE, LOGAN, MCINTOSH, RANSOM, RICHLAND, WARD | 3, 4, 7, 14, 17, 27, 28, 29, 39, 41, 43, 43, 45, 47 | Map |
| Cyperaceae | Eleocharis erythropoda | , bald spikerush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Eleocharis macrostachya | , pale spikerush | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 1, 2, 3, 4, 5, 6, 7, 8, 11, 15, 16, 16, 18, 19, 24, 26, 29, 31, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Eleocharis obtusa | , blunt spikerush | BARNES, BENSON, BURKE, CASS, DICKEY, DIVIDE, DUNN, EMMONS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MOUNTRAIL, PIERCE, RANSOM, RICHLAND, SARGENT, SHERIDAN, STEELE, STUTSMAN, WARD | 1, 2, 4, 5, 6, 11, 15, 16, 26, 31, 44, 45 | Map, Photo |
| Cyperaceae | Eleocharis ovata | , ovate spikerush | BURKE, DIVIDE, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, STUTSMAN | 7, 13, 18, 25, 45 | Map |
| Cyperaceae | Eleocharis palustris | , common spikerush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 11, 13, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Eleocharis parvula | , dwarf spikerush | BURLEIGH, GRAND FORKS, GRANT, KIDDER, MCINTOSH, NELSON, SARGENT | 1, 4, 5, 15, 16, 29, 33, 34, 35, 39, 41, 41, 43, 47 | Map, Photo |
| Cyperaceae | Eleocharis quinqueflora | , fewflower spikerush | BENSON, BURKE, KIDDER, MCHENRY, STUTSMAN | 5, 5, 7, 15, 16, 27, 29, 31, 35, 39, 41, 43 | Map |
| Cyperaceae | Eleocharis rostellata | , beaked spikerush | PIERCE | 4, 29, 41 | Map, Photo |
| Cyperaceae | Eleocharis wolfii | , Wolf's spikerush | CASS, RICHLAND | 1, 3, 15, 16, 18, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Hydrophyllaceae | Ellisia nyctelea | , Aunt Lucy | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 6, 7, 7, 8, 9, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo |
| Hydrocharitaceae | Elodea bifoliata | , twoleaf waterweed | BENSON, BURKE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, MCKENZIE, MOUNTRAIL, RANSOM, STARK, WALSH, WILLIAMS | 4, 5, 7, 13, 14, 15, 16, 24, 27, 29, 29, 32, 39, 41, 45, 47, 47 | Map |
| Hydrocharitaceae | Elodea canadensis | , Canadian waterweed | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DICKEY, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, MOUNTRAIL, NELSON, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, TRAILL, WALSH, WARD | 1, 2, 3, 4, 5, 6, 8, 11, 15, 16, 17, 18, 19, 25, 26, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Labiatae | Elsholtzia ciliata | , crested latesummer mint | CASS, GRAND FORKS. Introduced. | 5, 29, 39 | Map |
| Gramineae | Elymus albicans | , Montana wheatgrass | BILLINGS, BOTTINEAU, BURKE, DIVIDE, EDDY, GRAND FORKS, GRANT, MCKENZIE, MERCER, MOUNTRAIL, RAMSEY, RENVILLE, SLOPE, STARK, STUTSMAN, WILLIAMS | 3, 4, 5, 7, 13, 27, 28, 29, 32, 39 | Map, Photo, Photo |
| Gramineae | Elymus canadensis | , Canada wildrye | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Elymus caninus | , bearded wheatgrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 8, 10, 11, 18, 19, 21, 24, 26, 31, 42, 44 | Map, Photo, Photo, Photo |
| Gramineae | Elymus diversiglumis | , diverseglume wildrye | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DUNN, GRAND FORKS, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, STUTSMAN, WARD | 1, 3, 5, 5, 6, 7, 11, 14, 17, 18, 25, 26, 27, 28, 29, 30, 34, 39, 41, 42 | Map |
| Gramineae | Elymus elymoides | , squirreltail | BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, MCKENZIE, SIOUX, SLOPE, STARK | 1, 5, 5, 6, 7, 24, 27, 29, 31, 32, 39, 41, 43, 45 | Map |
| Gramineae | Elymus glaucus | , blue wildrye | BOTTINEAU, MCHENRY, MCLEAN | 1, 3, 7, 18, 29, 34, 35, 39, 41, 43, 45 | Map |
| Gramineae | Elymus hystrix | , eastern bottlebrush grass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 4, 5, 6, 7, 11, 14, 21, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45, 45 | Map, Photo, Photo, Photo |
| Gramineae | Elymus lanceolatus | , thickspike wheatgrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, LAMOURE, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RENVILLE, ROLETTE, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 8, 10, 11, 13, 17, 18, 19, 21, 24, 27, 28, 29, 32, 39, 41, 43, 43, 45 | Map, Photo, Photo, Photo |
| Gramineae | Elymus repens | , quackgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 37, 39, 40, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Elymus submuticus | , Virginia wildrye | CASS, EMMONS, MCLEAN, MORTON, PEMBINA, RICHLAND, WARD, WILLIAMS | 18, 29, 39, 41, 43 | Map |
| Gramineae | Elymus trachycaulus | , slender wheatgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 3, 4, 5, 7, 9, 12, 13, 14, 17, 18, 25, 27, 28, 29, 30, 32, 39, 41, 42, 43, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Elymus villosus | , hairy wildrye | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 5, 7, 8, 10, 11, 14, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45 | Map |
| Gramineae | Elymus virginicus | , Virginia wildrye | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo |
| Gramineae | Elymus wiegandii | , Wiegand's wildrye | BILLINGS, BOTTINEAU, PEMBINA, SIOUX, WARD | 5, 28, 29, 30, 32, 39, 43, 45 | Map |
| Amaranthaceae | Endolepis dioica | , Suckley's endolepis | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, RANSOM, RENVILLE, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 13, 17, 18, 24, 27, 28, 29, 29, 32, 39, 41, 41, 43, 43, 45, 47 | Map, Photo, Photo |
| Onagraceae | Epilobium brachycarpum | , tall annual willowherb | BENSON, BILLINGS, BOTTINEAU, BURKE, DIVIDE, GRANT, KIDDER, MCHENRY, MOUNTRAIL, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, WARD, WILLIAMS | 1, 3, 4, 5, 5, 7, 13, 17, 21, 25, 26, 27, 28, 29, 32, 39, 41, 43, 45 | Map, Photo |
| Onagraceae | Epilobium ciliatum | , fringed willowherb | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Onagraceae | Epilobium coloratum | , purpleleaf willowherb | EDDY, RANSOM, RICHLAND, STUTSMAN | 5, 15, 16, 29, 35, 39, 41, 43 | Map |
| Onagraceae | Epilobium leptophyllum | , bog willowherb | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 19, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo |
| Onagraceae | Epilobium palustre | , marsh willowherb | BOTTINEAU, CAVALIER, RICHLAND | 5, 7, 7, 45 | Map |
| Onagraceae | Epilobium pygmaeum | , smooth spike-primrose | BILLINGS, HETTINGER | 5, 5, 16, 27, 29, 32, 34, 35, 39, 41, 43 | Map |
| Equisetaceae | Equisetum arvense | , field horsetail | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Equisetaceae | Equisetum fluviatile | , water horsetail | BENSON, BOTTINEAU, BURKE, MCHENRY, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WARD | 1, 3, 4, 5, 6, 15, 16, 17, 18, 22, 23, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Equisetaceae | Equisetum hyemale | , scouringrush horsetail | BARNES, BENSON, BOTTINEAU, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, TOWNER, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 14, 15, 16, 17, 17, 18, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 48 | Map, Photo, Photo, Photo, Photo, Photo |
| Equisetaceae | Equisetum laevigatum | , smooth horsetail | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 10, 11, 13, 14, 15, 16, 17, 19, 21, 22, 23, 24, 25, 26, 27, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Equisetaceae | Equisetum palustre | , marsh horsetail | RANSOM, RICHLAND, SARGENT | 5, 15, 16, 22, 23, 25, 26, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Equisetaceae | Equisetum pratense | , meadow horsetail | BARNES, BURLEIGH, CASS, GRAND FORKS, MCHENRY, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, TRAILL | 1, 3, 4, 5, 14, 15, 16, 18, 22, 23, 25, 26, 27, 29, 30, 33, 34, 35, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Equisetaceae | Equisetum scirpoides | , dwarf scouringrush | RANSOM | 25, 29, 39, 41 | Map |
| Equisetaceae | Equisetum sylvaticum | , woodland horsetail | BENSON, CAVALIER, PEMBINA | 5, 6, 15, 16, 22, 23, 29, 30, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Equisetaceae | Equisetum variegatum | , variegated scouringrush | LOGAN, MCHENRY, MERCER | 5, 7, 34, 39, 41, 43, 45 | Map |
| Equisetaceae | Equisetum ×ferrissii | , Intermediate horsetail | BARNES, BENSON, CASS, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, LAMOURE, MCHENRY, MCINTOSH, MORTON, PEMBINA, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 8, 11, 13, 19, 23, 26, 29, 39, 41, 43, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Eragrostis cilianensis | , stinkgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Eragrostis hypnoides | , teal lovegrass | BARNES, BOTTINEAU, CASS, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, PEMBINA, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, TRAILL, WARD | 1, 3, 4, 5, 6, 7, 11, 14, 15, 16, 17, 18, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43 | Map, Photo, Photo |
| Gramineae | Eragrostis pectinacea | , tufted lovegrass | ADAMS, BARNES, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, RANSOM, RICHLAND, SARGENT, STARK, WALSH, WARD | 1, 4, 5, 7, 10, 17, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map, Photo |
| Gramineae | Eragrostis pilosa | , Indian lovegrass | BURKE, WARD. Introduced. | 4, 29, 39, 41 | Map |
| Gramineae | Eragrostis spectabilis | , purple lovegrass | RANSOM, RICHLAND, SARGENT | 1, 5, 25, 26, 29, 34, 35, 39, 41, 43 | Map |
| Compositae | Ericameria nauseosa | , rubber rabbitbrush | BENSON, BILLINGS, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, SHERIDAN, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 12, 13, 17, 18, 24, 27, 29, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map |
| Compositae | Erigeron annuus | , eastern daisy fleabane | BENSON, RANSOM, RICHLAND, SARGENT | 5, 7, 18, 25, 26, 29, 33, 35, 41 | Map |
| Compositae | Erigeron asper | , rough fleabane | BURKE, DIVIDE, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, SLOPE, WARD, WILLIAMS | 4, 13, 17, 25, 29 | Map, Photo |
| Compositae | Erigeron caespitosus | , tufted fleabane | BURKE, DIVIDE, DUNN, MOUNTRAIL, NELSON, WARD, WILLIAMS | 1, 3, 4, 5, 6, 9, 13, 24, 27, 29, 39, 41, 43, 47 | Map |
| Compositae | Erigeron compositus | , cutleaf daisy | BILLINGS, DIVIDE, GOLDEN VALLEY, MCKENZIE, MOUNTRAIL, SLOPE, WARD, WILLIAMS | 1, 3, 5, 13, 17, 24, 27, 29, 32, 39, 41, 43, 47 | Map |
| Compositae | Erigeron divergens | , spreading fleabane | BENSON, GOLDEN VALLEY, NELSON | 1, 3, 29, 34, 39, 41, 43, 45, 47 | Map |
| Compositae | Erigeron flagellaris | , trailing fleabane | OLIVER | 42, 47 | Map |
| Compositae | Erigeron glabellus | , streamside fleabane | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 18, 19, 21, 24, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Erigeron lonchophyllus | , shortray fleabane | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DIVIDE, EDDY, EMMONS, KIDDER, LOGAN, MCINTOSH, MOUNTRAIL, RAMSEY, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 5, 8, 11, 13, 15, 16, 21, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map |
| Compositae | Erigeron ochroleucus | , buff fleabane | DUNN, SIOUX | 4, 24, 35, 39, 41, 43 | Map, Photo |
| Compositae | Erigeron philadelphicus | , Philadelphia fleabane | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Erigeron pumilus | , shaggy fleabane | ADAMS, BILLINGS, BOWMAN, BURKE, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, OLIVER, RAMSEY, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 17, 18, 21, 24, 27, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Compositae | Erigeron radicatus | , taproot fleabane | DUNN | 5, 7, 29, 34, 39, 41, 43, 47 | Map |
| Compositae | Erigeron strigosus | , prairie fleabane | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Erigeron subtrinervis | , threenerve fleabane | BENSON, BOWMAN, OLIVER, SLOPE, STARK, WARD | 1, 3, 4, 5, 7, 17, 24, 27, 29, 39, 41, 43, 47 | Map, Photo |
| Polygonaceae | Eriogonum annuum | , annual buckwheat | ADAMS, BOWMAN, GOLDEN VALLEY, GRANT, MCLEAN, MERCER, MORTON, OLIVER, SIOUX, SLOPE | 1, 3, 4, 5, 7, 12, 18, 27, 29, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Polygonaceae | Eriogonum cernuum | , nodding buckwheat | DUNN, SLOPE | 5, 29, 34, 39, 41, 43 | Map |
| Polygonaceae | Eriogonum flavum | , alpine golden buckwheat | ADAMS, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, ROLETTE, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 12, 13, 17, 24, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Eriogonum gordonii | , Gordon's buckwheat | MOUNTRAIL | 4, 5, 13, 41 | Map |
| Polygonaceae | Eriogonum pauciflorum | , fewflower buckwheat | ADAMS, BENSON, BILLINGS, BOWMAN, DUNN, GOLDEN VALLEY, GRANT, HETTINGER, MCHENRY, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 13, 18, 24, 27, 29, 32, 39, 41, 43, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Polygonaceae | Eriogonum trichopes | , little deserttrumpet | GRANT, MOUNTRAIL | 5, 27 | Map |
| Polygonaceae | Eriogonum visheri | , Visher's buckwheat | BILLINGS, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, MOUNTRAIL, SIOUX, SLOPE | 1, 5, 5, 7, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Cyperaceae | Eriophorum angustifolium | , tall cottongrass | BARNES, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 15, 16, 17, 18, 19, 25, 26, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Cyperaceae | Eriophorum chamissonis | , Chamisso's cottongrass | BARNES, BOTTINEAU, LAMOURE, MCHENRY, ROLETTE | 4, 6, 7, 15, 16, 29, 34, 35, 39, 41, 43, 47 | Map, Photo |
| Cyperaceae | Eriophorum gracile | , slender cottongrass | RANSOM | 5, 29, 34, 41, 43 | Map |
| Cyperaceae | Eriophorum viridicarinatum | , thinleaf cottonsedge | BARNES, BOTTINEAU, BURKE, DIVIDE, GRIGGS, KIDDER, MCHENRY, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, SARGENT, WARD, WILLIAMS | 1, 4, 5, 5, 7, 7, 13, 15, 16, 26, 27, 29, 34, 35, 39, 41, 43, 47 | Map, Photo |
| Geraniaceae | Erodium cicutarium | , redstem stork's bill | BARNES. Introduced. | 3, 11, 18, 27, 29, 39, 40 | Map |
| Cruciferae | Erucastrum gallicum | , common dogmustard | BARNES, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, MCHENRY, MCKENZIE, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 11, 13, 17, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 43, 47 | Map |
| Cruciferae | Eruca vesicaria | , rocketsalad | CASS, PIERCE, ROLETTE. Introduced. | 27, 29, 39, 41, 43, 47 | Map |
| Umbelliferae | Eryngium planum | , plains eryngo | CASS. Introduced. | 5 | Map |
| Cruciferae | Erysimum asperum | , western wallflower | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Erysimum capitatum | , sanddune wallflower | ADAMS, BENSON, BILLINGS, DUNN, HETTINGER, SIOUX | 12, 43, 45 | Map |
| Cruciferae | Erysimum cheiranthoides | , wormseed wallflower | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Erysimum inconspicuum | , shy wallflower | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 13, 14, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map |
| Cruciferae | Erysimum marschallianum | , hard wallflower | KIDDER. Introduced. | 43 | Map |
| Cactaceae | Escobaria missouriensis | , Missouri foxtail cactus | BILLINGS, BURLEIGH, DUNN, GOLDEN VALLEY, MCKENZIE, SIOUX, SLOPE, STARK | 1, 5, 5, 7, 12, 24, 27, 29, 32, 33, 35, 39, 41, 43, 47 | Map |
| Cactaceae | Escobaria vivipara | , spinystar | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PIERCE, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Celastraceae | Euonymus alatus | , burningbush | GRAND FORKS. Introduced. | 7 | Map |
| Celastraceae | Euonymus atropurpureus | , burningbush | CASS, RANSOM, RICHLAND | 1, 5, 7, 18, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Compositae | Eupatorium perfoliatum | , common boneset | RANSOM, RICHLAND, SARGENT | 1, 3, 4, 5, 6, 7, 15, 16, 18, 25, 26, 27, 29, 33, 35, 39, 41, 43, 45, 47 | Map, Photo |
| Euphorbiaceae | Euphorbia agraria | , urban spurge | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 29, 43 | Map |
| Euphorbiaceae | Euphorbia brachycera | , horned spurge | BILLINGS | 7, 29, 39, 41, 47 | Map |
| Euphorbiaceae | Euphorbia cyparissias | , cypress spurge | BOWMAN, EDDY, KIDDER, MCINTOSH. Introduced. | 1, 7, 18, 19, 27, 29, 31, 39, 40, 43, 45 | Map |
| Euphorbiaceae | Euphorbia marginata | , snow on the mountain | CASS, DUNN, EDDY, KIDDER, MERCER, MORTON | 1, 3, 19, 27, 29, 39, 41, 43 | Map |
| Euphorbiaceae | Euphorbia spathulata | , warty spurge | BILLINGS, CASS, GOLDEN VALLEY, MCKENZIE, MORTON, SIOUX, SLOPE | 1, 3, 18, 24, 27, 29, 32, 39, 41, 43, 45, 47 | Map |
| Euphorbiaceae | Euphorbia virgata | , leafy spurge | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 6, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 37, 39, 39, 40, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Euthamia graminifolia | , flat-top goldentop | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 19, 25, 26, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Compositae | Euthamia gymnospermoides | , Texas goldentop | CASS, MCLEAN, RANSOM, RICHLAND | 18, 29, 39, 43 | Map |
| Compositae | Eutrochium maculatum | , spotted joe pye weed | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH | 1, 2, 4, 5, 6, 7, 8, 9, 11, 14, 15, 16, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Festuca altaica | , Altai fescue | BENSON, BOTTINEAU, BURKE, CAVALIER, DIVIDE, GRAND FORKS, MCHENRY, MOUNTRAIL, ROLETTE, TOWNER, WARD, WILLIAMS | 1, 4, 5, 6, 7, 13, 17, 27, 28, 43, 45 | Map |
| Gramineae | Festuca brachyphylla | , alpine fescue | BENSON, BURKE, DUNN, KIDDER, LAMOURE, MCLEAN, MOUNTRAIL, WILLIAMS | 5, 43, 45 | Map |
| Gramineae | Festuca hallii | , plains rough fescue | BENSON, BOTTINEAU, BURKE, CAVALIER, DIVIDE, MCLEAN, MOUNTRAIL, WARD, WILLIAMS | 3, 4, 18, 29, 34, 39, 41, 43, 45 | Map |
| Gramineae | Festuca rubra | , red fescue | CASS, GRAND FORKS. Introduced. | 29, 39, 43 | Map |
| Gramineae | Festuca saximontana | , Rocky Mountain fescue | BENSON, BOWMAN, BURKE, CASS, DIVIDE, EDDY, FOSTER, KIDDER, LAMOURE, MCHENRY, MCKENZIE, MOUNTRAIL, PEMBINA, PIERCE, ROLETTE, STEELE, STUTSMAN, WARD, WILLIAMS | 5, 7, 29, 39, 41, 43, 45 | Map |
| Gramineae | Festuca subverticillata | , nodding fescue | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, EDDY, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, TRAILL, WALSH | 1, 5, 5, 6, 7, 8, 11, 14, 19, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45 | Map |
| Gramineae | Festuca trachyphylla | , hard fescue | BENSON, BOTTINEAU, BURKE, CASS, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MOUNTRAIL, NELSON, PEMBINA, PIERCE, ROLETTE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WILLIAMS. Introduced. | 1, 3, 4, 5, 6, 7, 8, 9, 11, 13, 18, 19, 24, 27, 28, 30, 31, 39, 43, 44, 45 | Map |
| Rosaceae | Fragaria vesca | , woodland strawberry | BARNES, BILLINGS, BOTTINEAU, BURLEIGH, DUNN, GOLDEN VALLEY, GRAND FORKS, LAMOURE, MCKENZIE, MCLEAN, MERCER, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WALSH | 1, 5, 7, 11, 18, 24, 25, 26, 27, 28, 29, 30, 32, 39, 41, 42, 43, 47 | Map |
| Rosaceae | Fragaria virginiana | , Virginia strawberry | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Rhamnaceae | Frangula alnus | , glossy buckthorn | GRAND FORKS. Introduced. | 7 | Map |
| Oleaceae | Fraxinus americana | , white ash | GRAND FORKS, RANSOM | 7, 45 | Map |
| Oleaceae | Fraxinus nigra | , black ash | CASS, CAVALIER, PEMBINA | 5, 6, 7, 27, 29, 30, 33, 34, 39, 41, 43 | Map |
| Oleaceae | Fraxinus pennsylvanica | , green ash | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Liliaceae | Fritillaria atropurpurea | , spotted fritillary | BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MOUNTRAIL, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 18, 24, 27, 29, 31, 32, 39, 41, 45, 47 | Map, Photo |
| Liliaceae | Fritillaria pudica | , yellow fritillary | BILLINGS, GRAND FORKS, MORTON | 5, 5, 27, 29, 32, 33, 35, 39, 41, 43 | Map |
| Papaveraceae | Fumaria vaillantii | , earthsmoke | BARNES, BENSON, BURLEIGH, CASS, EDDY, GRAND FORKS, GRIGGS, NELSON, PEMBINA, RAMSEY, RANSOM, STEELE, STUTSMAN, WALSH, WARD, WELLS. Introduced. | 1, 5, 6, 7, 8, 11, 17, 19, 21, 25, 26, 27, 29, 30, 39, 43, 45 | Map |
| Compositae | Gaillardia aristata | , blanketflower | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Galeopsis bifida | , splitlip hempnettle | RAMSEY, ROLETTE, WALSH. Introduced. | 4, 21, 29, 39 | Map, Photo, Photo, Photo |
| Labiatae | Galeopsis tetrahit | , brittlestem hempnettle | BARNES, CAVALIER, GRAND FORKS, RANSOM, ROLETTE, TOWNER, WALSH. Introduced. | 1, 3, 4, 7, 25, 26, 27, 29, 40, 43 | Map, Photo |
| Compositae | Galinsoga parviflora | , gallant soldier | CASS, FOSTER, STARK. Introduced. | 3, 18, 29, 39, 40, 43, 45, 47 | Map |
| Compositae | Galinsoga quadriradiata | , shaggy soldier | BILLINGS, CASS, FOSTER, GOLDEN VALLEY, GRAND FORKS, MCHENRY, RANSOM, SLOPE. Introduced. | 1, 5, 7, 19, 25, 26, 27, 29, 39, 40, 43, 45, 47 | Map |
| Rubiaceae | Galium aparine | , stickywilly | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo |
| Rubiaceae | Galium boreale | , northern bedstraw | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rubiaceae | Galium labradoricum | , northern bog bedstraw | BOTTINEAU, CAVALIER, MCHENRY, PEMBINA, RANSOM, RICHLAND, TOWNER | 4, 5, 6, 7, 15, 25, 26, 29, 33, 34, 35, 39, 41, 43, 45 | Map, Photo, Photo |
| Rubiaceae | Galium obtusum | , bluntleaf bedstraw | ROLETTE | 4 | Map, Photo |
| Rubiaceae | Galium trifidum | , threepetal bedstraw | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45 | Map, Photo, Photo, Photo |
| Rubiaceae | Galium triflorum | , fragrant bedstraw | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 2, 3, 4, 5, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rubiaceae | Galium verum | , Yellow Spring bedstraw | CASS, DUNN, MCKENZIE, SLOPE, STARK. Introduced. | 1, 3, 4, 5, 18, 24, 29, 33, 39, 40, 43 | Map, Photo |
| Onagraceae | Gaura coccinea | , scarlet beeblossom | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Onagraceae | Gaura parviflora | , velvetweed | BILLINGS, GOLDEN VALLEY, SLOPE | 1, 18, 29, 32, 39, 41, 43, 45 | Map |
| Gentianaceae | Gentiana affinis | , pleated gentian | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, DIVIDE, EDDY, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, ROLETTE, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 24, 27, 28, 29, 30, 31, 39, 41, 43, 44, 45 | Map, Photo, Photo |
| Gentianaceae | Gentiana andrewsii | , closed bottle gentian | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WELLS | 1, 2, 3, 5, 6, 7, 8, 10, 11, 14, 15, 16, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45 | Map, Photo |
| Gentianaceae | Gentiana puberulenta | , downy gentian | BARNES, BENSON, CASS, DICKEY, EDDY, GRAND FORKS, LAMOURE, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, WALSH | 1, 2, 5, 7, 8, 11, 18, 21, 25, 26, 27, 29, 39, 41, 43, 45 | Map |
| Gentianaceae | Gentianella amarella | , autumn dwarf gentian | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MOUNTRAIL, RAMSEY, RICHLAND, ROLETTE, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map |
| Gentianaceae | Gentianopsis crinita | , greater fringed gentian | BURKE, EDDY, KIDDER, MCHENRY, PEMBINA, ROLETTE, TOWNER | 1, 5, 8, 15, 19, 29, 34, 35, 39, 41, 43 | Map |
| Gentianaceae | Gentianopsis detonsa | , windmill fringed gentian | BENSON | 7, 45 | Map |
| Gentianaceae | Gentianopsis virgata | , lesser fringed gentian | BARNES, BENSON, BOTTINEAU, BURKE, EDDY, EMMONS, FOSTER, KIDDER, LOGAN, MCHENRY, MCINTOSH, NELSON, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN | 3, 4, 5, 5, 6, 7, 8, 9, 13, 15, 16, 19, 25, 27, 28, 29, 30, 31, 39, 41, 43, 43, 45 | Map, Photo |
| Geraniaceae | Geranium bicknellii | , Bicknell's cranesbill | BILLINGS, BOTTINEAU, DUNN, EDDY, EMMONS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MOUNTRAIL, PEMBINA, RAMSEY, ROLETTE, STARK | 1, 3, 4, 6, 13, 21, 24, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map, Photo |
| Geraniaceae | Geranium carolinianum | , Carolina geranium | BOTTINEAU, CAVALIER, DUNN, GRAND FORKS, PEMBINA, ROLETTE, SIOUX, WARD, WILLIAMS | 1, 3, 4, 6, 7, 7, 13, 17, 18, 24, 27, 28, 29, 30, 39, 41, 43, 45 | Map, Photo |
| Geraniaceae | Geranium maculatum | , spotted geranium | CASS | 1, 27, 29, 34, 35, 39, 41, 43 | Map |
| Geraniaceae | Geranium pusillum | , small geranium | CASS, DICKEY, GRAND FORKS, LAMOURE, PEMBINA. Introduced. | 1, 2, 3, 27, 29, 39, 43 | Map |
| Rosaceae | Geum aleppicum | , yellow avens | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 11, 13, 17, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Geum canadense | , white avens | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DICKEY, DUNN, EDDY, GRAND FORKS, GRIGGS, LAMOURE, MCKENZIE, MCLEAN, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 14, 19, 21, 24, 25, 26, 27, 28, 29, 30, 32, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Rosaceae | Geum macrophyllum | , largeleaf avens | BARNES, BENSON, BOTTINEAU, CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WARD | 1, 3, 4, 5, 6, 7, 11, 18, 26, 27, 28, 29, 34, 39, 41, 43, 47 | Map, Photo |
| Rosaceae | Geum rivale | , purple avens | PEMBINA, ROLETTE | 4, 5, 7, 16, 29, 30, 33, 35, 39, 41, 42, 43, 47 | Map, Photo |
| Rosaceae | Geum triflorum | , old man's whiskers | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Verbenaceae | Glandularia bipinnatifida | , Dakota mock vervian | SLOPE | 43, 45 | Map |
| Primulaceae | Glaux maritima | , sea milkwort | BARNES, BENSON, BOTTINEAU, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RICHLAND, STARK, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 45, 47 | Map |
| Labiatae | Glechoma hederacea | , ground ivy | BARNES, BOTTINEAU, BURLEIGH, CASS, DICKEY, GRAND FORKS, LAMOURE, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WILLIAMS. Introduced. | 1, 2, 5, 6, 13, 18, 25, 26, 27, 28, 29, 30, 39, 40, 43 | Map |
| Leguminosae | Gleditsia triacanthos | , honeylocust | BURLEIGH, CASS, GRAND FORKS | 1, 7, 29, 39, 41, 43 | Map |
| Gramineae | Glyceria borealis | , small floating mannagrass | BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 45 | Map |
| Gramineae | Glyceria fluitans | , water mannagrass | BENSON. Introduced. | 7 | Map |
| Gramineae | Glyceria grandis | , American mannagrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Glyceria striata | , fowl mannagrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STEELE, STUTSMAN, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map |
| Leguminosae | Glycyrrhiza lepidota | , American licorice | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 21, 24, 25, 26, 27, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Gnaphalium palustre | , western marsh cudweed | BURKE, DIVIDE, MOUNTRAIL, WARD, WILLIAMS | 1, 4, 5, 13, 17, 27, 29, 39, 41, 43, 47 | Map |
| Compositae | Gnaphalium uliginosum | , marsh cudweed | BURKE, DIVIDE, WARD. Introduced. | 4, 5, 5, 13, 17, 39 | Map, Photo |
| Plantaginaceae | Gratiola aurea | , golden hedgehyssop | GRAND FORKS | 29, 39, 41 | Map |
| Plantaginaceae | Gratiola neglecta | , clammy hedgehyssop | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, MOUNTRAIL, NELSON, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, STARK, STEELE, STUTSMAN, TRAILL, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 9, 11, 13, 15, 16, 17, 18, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map |
| Amaranthaceae | Grayia spinosa | , spiny hopsage | SLOPE | 39 | Map |
| Compositae | Grindelia squarrosa | , curlycup gumweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Guizotia abyssinica | , ramtilla | PIERCE. Introduced. | 7 | Map |
| Compositae | Gutierrezia sarothrae | , broom snakeweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RENVILLE, ROLETTE, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polypodiaceae | Gymnocarpium dryopteris | , western oakfern | CAVALIER, RANSOM, RICHLAND, SARGENT | 5, 7, 18, 26, 29, 34, 35, 39, 41, 43 | Map |
| Leguminosae | Gymnocladus dioicus | , Kentucky coffeetree | CASS, GRAND FORKS, RANSOM | 1, 7, 29, 39, 41, 43 | Map |
| Caryophyllaceae | Gypsophila paniculata | , baby's breath | ADAMS, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, OLIVER, ROLETTE, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 8, 11, 13, 17, 19, 24, 27, 29, 31, 36, 39, 40, 43, 44, 45, 47 | Map, Photo |
| Boraginaceae | Hackelia deflexa | , nodding stickseed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Boraginaceae | Hackelia floribunda | , manyflower stickseed | BENSON, BILLINGS, BOTTINEAU, BURKE, GOLDEN VALLEY, KIDDER, MOUNTRAIL, PIERCE, RICHLAND, SLOPE, WARD | 1, 4, 5, 7, 13, 17, 18, 27, 28, 29, 31, 32, 39, 41, 43 | Map, Photo, Photo |
| Boraginaceae | Hackelia virginiana | , beggarslice | BARNES, CASS, CAVALIER, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, TRAILL, WALSH, WARD | 1, 4, 5, 6, 7, 11, 25, 26, 29, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gentianaceae | Halenia deflexa | , American spurred gentian | CAVALIER, PEMBINA | 1, 29, 33, 34, 35, 39, 41, 43 | Map |
| Amaranthaceae | Halogeton glomeratus | , saltflower | BILLINGS, MCKENZIE. Introduced. | 36, 39, 40 | Map |
| Labiatae | Hedeoma drummondii | , Drummond's false pennyroyal | ADAMS, BILLINGS, BOWMAN, DUNN, EDDY, GOLDEN VALLEY, GRANT, MCKENZIE, MERCER, MORTON, OLIVER, SLOPE, STARK, WILLIAMS | 1, 4, 5, 7, 13, 18, 24, 27, 29, 39, 41, 43, 45 | Map |
| Labiatae | Hedeoma hispida | , rough false pennyroyal | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Hedysarum boreale | , Utah sweetvetch | BILLINGS, BOTTINEAU, BURKE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, RENVILLE, SLOPE, STARK, WARD, WELLS, WILLIAMS | 1, 4, 5, 6, 7, 13, 17, 19, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map |
| Compositae | Helenium autumnale | , common sneezeweed | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 8, 10, 11, 13, 15, 16, 17, 19, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 43, 45, 47 | Map |
| Cistaceae | Helianthemum bicknellii | , hoary frostweed | PEMBINA, RANSOM, RICHLAND | 1, 5, 5, 7, 25, 26, 27, 29, 30, 33, 34, 35, 39, 41, 43, 45 | Map |
| Compositae | Helianthus giganteus | , giant sunflower | NELSON, WARD | 3, 9, 39, 45 | Map |
| Compositae | Helianthus grosseserratus | , sawtooth sunflower | CASS, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 16, 26, 29, 35, 39, 41, 43, 47 | Map |
| Compositae | Helianthus maximiliani | , Maximilian sunflower | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Helianthus nuttallii | , Nuttall's sunflower | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 6, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 25, 25, 26, 27, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Helianthus pauciflorus | , stiff sunflower | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 29, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Helianthus petiolaris | , prairie sunflower | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Helianthus tuberosus | , Jerusalem artichoke | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Compositae | Helianthus ×laetiflorus | , cheerful sunflower | BENSON, BOTTINEAU, GRAND FORKS, NELSON, RANSOM | 3, 5, 7, 9, 28, 39 | Map |
| Compositae | Heliopsis helianthoides | , smooth oxeye | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, EDDY, GRAND FORKS, GRIGGS, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, TRAILL, WALSH | 1, 3, 4, 5, 6, 7, 7, 8, 11, 14, 18, 19, 21, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo |
| Hydrophyllaceae | Heliotropium curassavicum | , salt heliotrope | BENSON, BOTTINEAU, BURLEIGH, CASS, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, KIDDER, LOGAN, MCHENRY, MCINTOSH, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN, TOWNER | 1, 5, 6, 8, 11, 15, 16, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 34, 39, 41, 43 | Map |
| Umbelliferae | Heracleum maximum | , common cowparsnip | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 3, 4, 5, 7, 13, 14, 17, 25, 27, 28, 29, 30, 32, 39, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Umbelliferae | Heracleum sphondylium | , eltrot | BARNES, BENSON, BILLINGS, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 5, 6, 8, 11, 18, 19, 21, 24, 26, 31, 41, 42, 43, 44 | Map |
| Cruciferae | Hesperis matronalis | , dames rocket | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Hesperostipa comata | , needle and thread | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Hesperostipa curtiseta | , shortbristle needle and thread | BENSON, BOTTINEAU, BURKE, DIVIDE, DUNN, EDDY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, RAMSEY, RENVILLE, STARK, WARD, WELLS | 4, 5, 8, 19, 21, 24, 29, 39, 41 | Map, Photo, Photo, Photo, Photo |
| Gramineae | Hesperostipa spartea | , porcupinegrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map |
| Pontederiaceae | Heteranthera dubia | , grassleaf mudplantain | BARNES, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MERCER, NELSON, RICHLAND, STUTSMAN, TRAILL, WALSH | 1, 5, 6, 7, 7, 11, 15, 16, 19, 25, 26, 27, 29, 31, 39, 41, 47 | Map |
| Compositae | Heterotheca stenophylla | , stiffleaf false goldenaster | LOGAN, MERCER | 4, 43 | Map, Photo |
| Compositae | Heterotheca villosa | , hairy false goldenaster | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Saxifragaceae | Heuchera richardsonii | , Richardson's alumroot | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Malvaceae | Hibiscus moscheutos | , crimsoneyed rosemallow | BENSON | 39 | Map |
| Malvaceae | Hibiscus trionum | , flower of an hour | BARNES, BOTTINEAU, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN, WELLS. Introduced. | 1, 2, 4, 5, 7, 8, 11, 18, 19, 24, 26, 27, 29, 31, 39, 40, 43, 45, 47 | Map |
| Compositae | Hieracium aurantiacum | , orange hawkweed | ROLETTE. Introduced. | 36, 40 | Map |
| Compositae | Hieracium canadense | , Canadian hawkweed | BOTTINEAU, GRAND FORKS, RANSOM, ROLETTE, SLOPE, WARD | 1, 4, 7, 17, 27 | Map |
| Compositae | Hieracium pilosella | , mouseear hawkweed | BENSON. Introduced. | 7 | Map |
| Compositae | Hieracium scabrum | , rough hawkweed | GRAND FORKS | 7 | Map |
| Compositae | Hieracium umbellatum | , narrowleaf hawkweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STUTSMAN, WARD | 1, 2, 3, 4, 5, 8, 11, 13, 19, 21, 24, 25, 26, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Hieracium ×floribundum | , pale hawkweed | PIERCE. Introduced. | 7 | Map |
| Gramineae | Hierochloe hirta | , northern sweetgrass | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, GRAND FORKS, GRANT, LAMOURE, MCHENRY, MCLEAN, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SHERIDAN, STEELE, STUTSMAN, TOWNER, WARD, WILLIAMS | 4, 5, 29, 39, 41, 43, 45 | Map |
| Gramineae | Hierochloe odorata | , sweetgrass | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 30, 31, 43, 44, 45 | Map, Photo, Photo, Photo |
| Plantaginaceae | Hippuris vulgaris | , common mare's-tail | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 19, 21, 24, 25, 26, 27, 28, 29, 31, 39, 41, 43, 43, 44, 45 | Map, Photo, Photo, Photo |
| Gramineae | Hordeum jubatum | , foxtail barley | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Hordeum pusillum | , little barley | BILLINGS, GRAND FORKS, SLOPE | 1, 5, 5, 7, 29, 32, 34, 39, 41, 43 | Map |
| Rubiaceae | Houstonia longifolia | , longleaf summer bluet | BENSON, CAVALIER, EDDY, GRAND FORKS, MCHENRY, NELSON, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, TOWNER, WELLS | 1, 3, 5, 6, 7, 8, 19, 26, 27, 29, 29, 30, 39, 41, 43, 44 | Map |
| Cistaceae | Hudsonia tomentosa | , woolly beachheather | RANSOM | 3, 5, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Cannabaceae | Humulus lupulus | , common hop | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Hydrophyllaceae | Hydrophyllum virginianum | , eastern waterleaf | BARNES, CASS, EMMONS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, WALSH | 1, 3, 4, 5, 6, 7, 11, 14, 25, 26, 27, 29, 31, 39, 41, 42, 43, 45 | Map, Photo, Photo |
| Compositae | Hymenopappus filifolius | , fineleaf hymenopappus | ADAMS, BENSON, BILLINGS, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, MOUNTRAIL, SIOUX, SLOPE, STARK, WILLIAMS | 1, 1, 3, 4, 5, 5, 6, 7, 12, 13, 13, 18, 24, 24, 27, 29, 29, 32, 39, 41, 41, 43, 43, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Hymenoxys richardsonii | , pingue rubberweed | BENSON, BILLINGS, BOWMAN, DIVIDE, GOLDEN VALLEY, MCKENZIE, MORTON, SLOPE, STARK | 1, 3, 4, 5, 6, 7, 13, 18, 18, 24, 27, 29, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Solanaceae | Hyoscyamus niger | , black henbane | BARNES, BILLINGS, BOTTINEAU, BOWMAN, DICKEY, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, OLIVER, SLOPE, STARK, TOWNER. Introduced. | 1, 2, 3, 4, 5, 6, 7, 11, 18, 24, 27, 28, 29, 31, 32, 36, 39, 40, 42, 43 | Map, Photo |
| Hypericaceae | Hypericum boreale | , northern St. Johnswort | RANSOM | 6, 35, 43 | Map |
| Hypericaceae | Hypericum majus | , large St. Johnswort | BARNES, BENSON, CASS, EDDY, RANSOM, RICHLAND, STARK, STUTSMAN | 1, 3, 5, 6, 7, 11, 15, 16, 18, 25, 26, 27, 29, 33, 39, 41, 43, 43, 45, 47 | Map |
| Hypericaceae | Hypericum perforatum | , common St. Johnswort | RANSOM. Introduced. | 3, 25, 26, 27, 29, 33, 39, 47 | Map |
| Hypoxidaceae | Hypoxis hirsuta | , common goldstar | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, NELSON, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SHERIDAN, STUTSMAN, WARD | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Balsaminaceae | Impatiens capensis | , jewelweed | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DIVIDE, EDDY, GRAND FORKS, GRIGGS, MCHENRY, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH | 1, 3, 4, 5, 6, 7, 7, 8, 11, 14, 15, 16, 19, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Balsaminaceae | Impatiens pallida | , pale touch-me-not | BOTTINEAU, CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 7, 14, 15, 16, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45 | Map |
| Convolvulaceae | Ipomoea hederacea | , ivyleaf morning-glory | LAMOURE. Introduced. | 3, 5, 29, 39 | Map |
| Convolvulaceae | Ipomoea purpurea | , tall morning-glory | CASS, DICKEY, LAMOURE, WARD. Introduced. | 1, 2, 3, 4, 5, 17, 18, 29, 39, 40, 43 | Map |
| Polemoniaceae | Ipomopsis congesta | , ballhead ipomopsis | BILLINGS, BOWMAN, MCKENZIE, SLOPE, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 24, 27, 29, 32, 39, 41, 43, 43, 45 | Map, Photo |
| Iridaceae | Iris germanica | , German iris | CAVALIER. Introduced. | 4 | Map, Photo |
| Iridaceae | Iris missouriensis | , Rocky Mountain iris | BURLEIGH, EMMONS, KIDDER, LOGAN | 1, 5, 29, 31, 33, 34, 35, 39, 41, 43 | Map |
| Compositae | Iva annua | , annual marsh elder | CASS, WALSH | 1, 5, 5, 27, 29, 33, 39, 41, 43, 45, 47 | Map |
| Compositae | Iva axillaris | , povertyweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, ROLETTE, SHERIDAN, SIOUX, SLOPE, STARK, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 13, 17, 18, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Juglandaceae | Juglans nigra | , black walnut | CASS, SIOUX, WARD | 1, 4, 29, 39, 41, 43, 48 | Map, Photo |
| Juncaceae | Juncus alpinoarticulatus | , northern green rush | BENSON, BOTTINEAU, BURKE, DIVIDE, EDDY, EMMONS, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, RANSOM, ROLETTE, STUTSMAN, WARD | 1, 5, 6, 8, 11, 13, 15, 16, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map |
| Juncaceae | Juncus arcticus | , arctic rush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Juncaceae | Juncus articulatus | , jointleaf rush | ADAMS, MCHENRY, MORTON | 4, 7 | Map, Photo, Photo, Photo |
| Juncaceae | Juncus brachycephalus | , smallhead rush | BENSON, BOTTINEAU, CASS, MCHENRY, RANSOM, STUTSMAN, WARD | 3, 5, 17, 18, 27, 28, 29, 35, 39, 41, 43, 45, 47 | Map |
| Juncaceae | Juncus brevicaudatus | , narrowpanicle rush | BOTTINEAU, MCHENRY | 5, 7, 15, 16, 29, 34, 35, 39, 43 | Map |
| Juncaceae | Juncus bufonius | , toad rush | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Juncaceae | Juncus canadensis | , Canadian rush | BOTTINEAU, GRAND FORKS | 3, 5, 7 | Map |
| Juncaceae | Juncus compressus | , roundfruit rush | ADAMS, BOWMAN, BURLEIGH, EMMONS, HETTINGER, KIDDER, LOGAN, MCINTOSH, MORTON, WILLIAMS. Introduced. | 4, 5, 15, 16, 29, 31, 39, 43, 45, 47 | Map, Photo, Photo |
| Juncaceae | Juncus dudleyi | , Dudley's rush | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Juncaceae | Juncus effusus | , common rush | BENSON | 3, 7, 27, 29, 39 | Map |
| Juncaceae | Juncus gerardii | , saltmeadow rush | CASS, RICHLAND | 5, 5, 15, 16, 25, 26, 29, 33, 39, 41, 43, 47 | Map |
| Juncaceae | Juncus interior | , inland rush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Juncaceae | Juncus longistylis | , longstyle rush | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Juncaceae | Juncus nodosus | , knotted rush | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MERCER, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Juncaceae | Juncus tenuis | , poverty rush | BENSON, WARD | 7, 29, 39, 41, 45, 47 | Map |
| Juncaceae | Juncus torreyi | , Torrey's rush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Juncaceae | Juncus vaseyi | , Vasey's rush | BOTTINEAU | 5, 15, 16, 18, 29, 34, 35, 39, 41, 43, 47 | Map |
| Cupressaceae | Juniperus communis | , common juniper | ADAMS, BENSON, BILLINGS, BOWMAN, CAVALIER, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, SIOUX, SLOPE, STARK, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 18, 19, 24, 27, 29, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cupressaceae | Juniperus horizontalis | , creeping juniper | BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, ROLETTE, SIOUX, SLOPE, STARK, STEELE, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 24, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Cupressaceae | Juniperus scopulorum | , Rocky Mountain juniper | BARNES, BILLINGS, BOWMAN, BURLEIGH, CASS, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 8, 11, 13, 18, 19, 21, 24, 25, 27, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Cupressaceae | Juniperus virginiana | , eastern redcedar | BILLINGS, BOTTINEAU, CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, WARD | 1, 4, 5, 7, 17, 26, 29, 39, 41, 42, 43 | Map, Photo, Photo |
| Caprifoliaceae | Knautia arvensis | , field scabiosa | GRAND FORKS, PIERCE, WARD. Introduced. | 3, 5, 17, 27, 29, 39, 43 | Map |
| Gramineae | Koeleria macrantha | , prairie Junegrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Krascheninnikovia lanata | , winterfat | BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 6, 7, 12, 13, 17, 18, 24, 27, 28, 29, 31, 32, 39, 41, 42, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Lactuca biennis | , tall blue lettuce | BARNES, BENSON, BOTTINEAU, CASS, EDDY, GRAND FORKS, MCLEAN, PEMBINA, RANSOM, RICHLAND, SARGENT, SLOPE, STUTSMAN, WALSH | 1, 3, 4, 7, 7, 8, 11, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Compositae | Lactuca canadensis | , Canada lettuce | ADAMS, BARNES, BILLINGS, BOTTINEAU, CASS, CAVALIER, DUNN, EDDY, GRAND FORKS, MCLEAN, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE | 1, 3, 4, 5, 6, 11, 18, 24, 25, 26, 27, 28, 29, 30, 32, 39, 42, 43, 45, 47 | Map, Photo |
| Compositae | Lactuca ludoviciana | , biannual lettuce | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, DICKEY, EDDY, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, MCHENRY, MCLEAN, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WARD, WILLIAMS | 1, 2, 3, 4, 5, 7, 8, 10, 11, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 32, 39, 41, 42, 43, 45, 45, 47 | Map |
| Compositae | Lactuca serriola | , prickly lettuce | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 7, 8, 9, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 45, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Lactuca tatarica | , blue lettuce | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Lamium amplexicaule | , henbit deadnettle | CAVALIER, OLIVER, STARK. Introduced. | 1, 5, 20, 24, 27, 29, 39, 40, 41, 43 | Map |
| Urticaceae | Laportea canadensis | , Canadian woodnettle | BARNES, CASS, CAVALIER, DICKEY, EDDY, GRAND FORKS, GRIGGS, LAMOURE, MCHENRY, PEMBINA, RANSOM, RENVILLE, RICHLAND, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 11, 14, 17, 18, 19, 25, 26, 27, 29, 30, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Boraginaceae | Lappula cenchrusoides | , Great Plains stickseed | BILLINGS, BOWMAN, DUNN, MCKENZIE, SIOUX, SLOPE, WILLIAMS | 1, 4, 5, 7, 13, 27, 29, 32, 34, 39, 43 | Map, Photo |
| Boraginaceae | Lappula occidentalis | , flatspine stickseed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 45, 45 | Map, Photo |
| Boraginaceae | Lappula squarrosa | , European stickseed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 42, 43, 43, 45 | Map, Photo |
| Compositae | Lapsana communis | , common nipplewort | CASS. Introduced. | 3, 27, 29, 39, 40, 43, 47 | Map |
| Leguminosae | Lathyrus ochroleucus | , cream pea | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, EDDY, GRAND FORKS, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, WALSH, WARD | 1, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 21, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 44, 45 | Map, Photo |
| Leguminosae | Lathyrus palustris | , marsh pea | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, EDDY, GRAND FORKS, GRIGGS, LAMOURE, MCHENRY, MORTON, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, WALSH | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 16, 19, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43 | Map, Photo, Photo |
| Leguminosae | Lathyrus sativus | , white pea | STARK. Introduced. | 24, 39 | Map |
| Leguminosae | Lathyrus venosus | , veiny pea | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, EDDY, GRAND FORKS, LAMOURE, MORTON, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, WALSH, WARD | 1, 2, 3, 4, 6, 7, 8, 11, 14, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Malvaceae | Lavatera cretica | , Cornish mallow | DIVIDE. Introduced. | 5, 39 | Map |
| Cistaceae | Lechea stricta | , prairie pinweed | BOWMAN, RANSOM, RICHLAND | 1, 3, 5, 5, 25, 26, 27, 29, 32, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Gramineae | Leersia oryzoides | , rice cutgrass | BARNES, BOTTINEAU, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45 | Map, Photo |
| Gramineae | Leersia virginica | , whitegrass | BURLEIGH, EMMONS, FOSTER, GRANT, MCINTOSH, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STUTSMAN | 1, 5, 6, 25, 26, 27, 29, 35, 39, 41, 43 | Map |
| Araceae | Lemna minor | , common duckweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 17, 19, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 45, 47 | Map, Photo, Photo |
| Araceae | Lemna minuta | , least duckweed | RENVILLE, TOWNER | 4 | Map, Photo |
| Araceae | Lemna perpusilla | , minute duckweed | BARNES, BOTTINEAU, CASS, GRAND FORKS, GRIGGS, MCHENRY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WARD | 1, 11, 17, 18, 26, 28, 29 | Map |
| Araceae | Lemna trisulca | , star duckweed | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Araceae | Lemna turionifera | , turion duckweed | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRANT, GRIGGS, HETTINGER, KIDDER, LOGAN, MCHENRY, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WILLIAMS | 4, 5, 16, 19, 21, 24, 29, 39, 41, 43, 44, 45, 47 | Map |
| Labiatae | Leonurus cardiaca | , common motherwort | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MORTON, NELSON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH, WARD. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 40, 42, 43 | Map, Photo, Photo, Photo |
| Cruciferae | Lepidium campestre | , field pepperweed | GRAND FORKS, MERCER, MORTON. Introduced. | 42 | Map |
| Cruciferae | Lepidium densiflorum | , common pepperweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Lepidium perfoliatum | , clasping pepperweed | BILLINGS, BOWMAN, CASS, EMMONS, GOLDEN VALLEY, HETTINGER, MCKENZIE, SLOPE, WARD, WILLIAMS. Introduced. | 1, 4, 5, 17, 27, 29, 31, 32, 39, 40, 43 | Map, Photo |
| Cruciferae | Lepidium ramosissimum | , manybranched pepperweed | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, SHERIDAN, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 4, 5, 6, 7, 11, 13, 17, 18, 19, 21, 24, 27, 28, 29, 30, 31, 32, 39, 41, 43, 47 | Map |
| Cruciferae | Lepidium sativum | , gardencress pepperweed | BILLINGS, PEMBINA, WARD. Introduced. | 3, 4, 7, 17, 27, 29 | Map |
| Cruciferae | Lepidium virginicum | , Virginia pepperweed | BENSON, CASS, GRAND FORKS, GRANT, HETTINGER, MCKENZIE, STUTSMAN, TOWNER | 1, 3, 5, 7, 14, 27, 29, 39, 41, 43, 45 | Map |
| Gramineae | Leptochloa fusca | , Malabar sprangletop | BARNES, BOWMAN, BURLEIGH, CASS, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WILLIAMS | 1, 3, 4, 5, 6, 11, 13, 15, 16, 25, 26, 27, 29, 31, 32, 39, 41, 43 | Map |
| Polemoniaceae | Leptosiphon septentrionalis | , northern linanthus | WARD | 5 | Map |
| Cruciferae | Lesquerella alpina | , alpine bladderpod | BENSON, BILLINGS, BOWMAN, DUNN, GOLDEN VALLEY, GRANT, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 17, 18, 24, 27, 29, 32, 39, 41, 43, 43, 45, 45, 47 | Map, Photo, Photo, Photo |
| Cruciferae | Lesquerella arenosa | , Great Plains bladderpod | ADAMS, BENSON, BILLINGS, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 7, 7, 8, 18, 19, 24, 26, 27, 27, 29, 32, 39, 41, 43, 43, 45, 45, 47 | Map, Photo |
| Cruciferae | Lesquerella douglasii | , Douglas' bladderpod | DUNN | 43 | Map |
| Cruciferae | Lesquerella ludoviciana | , foothill bladderpod | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 4, 5, 6, 7, 8, 11, 12, 13, 17, 19, 21, 24, 25, 26, 28, 29, 31, 32, 39, 41, 42, 43, 43, 44, 47 | Map, Photo, Photo, Photo |
| Compositae | Leucanthemum vulgare | , oxeye daisy | ADAMS, BARNES, BENSON, CASS, CAVALIER, EDDY, GRAND FORKS, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STUTSMAN. Introduced. | 1, 3, 4, 5, 5, 6, 7, 8, 11, 18, 19, 21, 24, 25, 26, 27, 29, 39, 40, 43, 47 | Map |
| Asparagaceae | Leucocrinum montanum | , common starlily | BILLINGS, BOWMAN, GOLDEN VALLEY, MCKENZIE, SLOPE | 1, 5, 6, 27, 29, 32, 33, 34, 35, 39, 41, 43, 47 | Map |
| Compositae | Liatris aspera | , tall blazing star | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, WALSH, WARD | 1, 2, 4, 5, 7, 8, 10, 19, 25, 26, 28, 29, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Liatris ligulistylis | , Rocky Mountain blazing star | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, OLIVER, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 11, 13, 17, 19, 21, 24, 25, 26, 28, 29, 31, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Liatris punctata | , dotted blazing star | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Liatris pycnostachya | , prairie blazing star | ADAMS, GRAND FORKS, HETTINGER, MCKENZIE, PIERCE, RANSOM, RICHLAND, SARGENT, WARD | 1, 3, 4, 5, 5, 6, 7, 7, 10, 18, 24, 25, 26, 27, 29, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Liatris scariosa | , devil's bite | BENSON, GRAND FORKS, MCHENRY, RAMSEY, RANSOM, RICHLAND | 3, 7, 18, 27, 45, 45 | Map |
| Compositae | Liatris ×fallacior | , gayfeather | BENSON | 18, 29, 39, 41 | Map |
| Liliaceae | Lilium philadelphicum | , wood lily | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Plumbaginaceae | Limonium vulgare | , Mediterranean sea lavender | MCLEAN | 5 | Map |
| Scrophulariaceae | Limosella aquatica | , water mudwort | ADAMS, BARNES, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, MOUNTRAIL, NELSON, PEMBINA, STARK, STEELE, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 9, 11, 14, 15, 16, 17, 18, 24, 27, 28, 29, 30, 31, 39, 41, 43, 44 | Map |
| Scrophulariaceae | Limosella australis | , Welsh mudwort | BURKE, DIVIDE, MOUNTRAIL | 13 | Map |
| Plantaginaceae | Linaria dalmatica | , Dalmatian toadflax | EDDY, EMMONS, KIDDER, LOGAN, MCINTOSH, MERCER, STARK, STEELE. Introduced. | 1, 19, 24, 29, 31, 39, 40, 41, 43 | Map |
| Plantaginaceae | Linaria genistifolia | , broomleaf toadflax | BARNES, BOTTINEAU, CAVALIER, DUNN, EDDY, GRANT, HETTINGER, KIDDER, MCHENRY, MCINTOSH, MCKENZIE, MORTON, NELSON, RANSOM, RENVILLE, SHERIDAN, SLOPE. Introduced. | 36, 37, 40 | Map |
| Plantaginaceae | Linaria vulgaris | , butter and eggs | BARNES, BENSON, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 36, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Linderniaceae | Lindernia dubia | , yellowseed false pimpernel | CASS, EMMONS, KIDDER, LOGAN, MCINTOSH, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 1, 3, 5, 5, 7, 11, 15, 15, 16, 18, 25, 26, 26, 27, 27, 29, 31, 39, 41, 43 | Map |
| Caprifoliaceae | Linnaea borealis | , twinflower | BOTTINEAU, CAVALIER, DUNN, PEMBINA | 1, 5, 6, 7, 24, 27, 28, 29, 33, 39, 41, 43 | Map |
| Linaceae | Linum compactum | , Wyoming flax | BENSON, BOWMAN, DUNN, GOLDEN VALLEY, GRANT, MERCER, MOUNTRAIL, SIOUX, WELLS | 18, 29, 39, 41, 43, 45, 47 | Map |
| Linaceae | Linum lewisii | , Lewis flax | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 6, 7, 7, 8, 9, 11, 13, 17, 18, 18, 19, 21, 24, 26, 27, 28, 29, 31, 32, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Linaceae | Linum rigidum | , stiffstem flax | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Linaceae | Linum sulcatum | , grooved flax | BARNES, BENSON, BOTTINEAU, BOWMAN, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, LAMOURE, MCHENRY, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 13, 17, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Orchidaceae | Liparis loeselii | , yellow widelip orchid | BENSON, BURLEIGH, KIDDER, PEMBINA, RANSOM, STUTSMAN | 1, 3, 5, 7, 15, 16, 27, 29, 30, 31, 33, 34, 35, 39, 41, 43 | Map |
| Cyperaceae | Lipocarpha drummondii | , Drummond's halfchaff sedge | CASS, DICKEY, LAMOURE, MCHENRY, SARGENT | 4, 5, 5, 6, 15, 16, 25, 26, 27, 29, 35, 39, 41, 43 | Map, Photo, Photo |
| Cyperaceae | Lipocarpha micrantha | , smallflower halfchaff sedge | CASS | 1, 15, 16, 27, 29, 34, 39, 43 | Map |
| Boraginaceae | Lithospermum canescens | , hoary puccoon | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Boraginaceae | Lithospermum incisum | , narrowleaf stoneseed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Campanulaceae | Lobelia kalmii | , Ontario lobelia | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, DIVIDE, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TOWNER | 1, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 44, 45 | Map, Photo |
| Campanulaceae | Lobelia siphilitica | , great blue lobelia | BARNES, BENSON, CASS, DICKEY, DIVIDE, LAMOURE, RANSOM, RICHLAND, SARGENT | 1, 2, 5, 5, 6, 7, 11, 15, 16, 25, 26, 27, 29, 39, 41, 43, 45 | Map |
| Campanulaceae | Lobelia spicata | , palespike lobelia | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, TOWNER, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Lobularia maritima | , sweet alyssum | GRAND FORKS. Introduced. | 7 | Map |
| Compositae | Logfia arvensis | , field cottonrose | SLOPE. Introduced. | 4 | Map, Photo |
| Gramineae | Lolium perenne | , perennial ryegrass | BARNES, BENSON, BOTTINEAU, CASS, MOUNTRAIL, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN, TOWNER, WALSH, WARD. Introduced. | 1, 3, 4, 5, 7, 11, 17, 25, 26, 27, 28, 29, 39, 40, 41, 43 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Lolium persicum | , Persian ryegrass | BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, DUNN, GOLDEN VALLEY, MCKENZIE, MCLEAN, MOUNTRAIL, RAMSEY, SHERIDAN, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WARD, WILLIAMS. Introduced. | 1, 4, 5, 11, 13, 21, 24, 28, 29, 32, 39, 43, 45 | Map |
| Gramineae | Lolium rigidum | , Wimmera ryegrass | CAVALIER, MOUNTRAIL, SLOPE. Introduced. | 27, 39 | Map |
| Gramineae | Lolium temulentum | , Darnel ryegrass | CAVALIER, RICHLAND, STARK, WALSH. Introduced. | 3, 5, 24, 25, 26, 27, 29, 39, 43 | Map |
| Umbelliferae | Lomatium cous | , cous biscuitroot | MCKENZIE | 18, 29, 39 | Map |
| Umbelliferae | Lomatium foeniculaceum | , desert biscuitroot | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45, 45 | Map, Photo, Photo, Photo |
| Umbelliferae | Lomatium macrocarpum | , bigseed biscuitroot | BOTTINEAU, BURKE, CAVALIER, MOUNTRAIL, PIERCE, ROLETTE, SLOPE, WALSH, WARD, WILLIAMS | 1, 4, 5, 13, 17, 18, 27, 28, 29, 39, 41, 43 | Map |
| Umbelliferae | Lomatium orientale | , Northern Idaho biscuitroot | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, OLIVER, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45 | Map |
| Caprifoliaceae | Lonicera dioica | , limber honeysuckle | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 7, 8, 11, 13, 14, 17, 17, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Caprifoliaceae | Lonicera japonica | , Japanese honeysuckle | BOTTINEAU. Introduced. | 5 | Map |
| Caprifoliaceae | Lonicera maackii | , Amur honeysuckle | CASS. Introduced. | 5, 29, 39 | Map |
| Caprifoliaceae | Lonicera morrowii | , Morrow's honeysuckle | GRAND FORKS, TRAILL, WARD. Introduced. | 7, 17, 43 | Map |
| Caprifoliaceae | Lonicera tatarica | , Tatarian honeysuckle | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, STARK, STUTSMAN, TRAILL, WALSH, WARD, WELLS. Introduced. | 1, 2, 4, 5, 5, 6, 6, 7, 8, 11, 13, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Caprifoliaceae | Lonicera ×bella | , showy fly honeysuckle | GRAND FORKS. Introduced. | 45 | Map |
| Leguminosae | Lotus corniculatus | , bird's-foot trefoil | BARNES, CASS, DICKEY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN. Introduced. | 1, 2, 4, 5, 7, 11, 21, 25, 26, 29, 31, 39, 40, 43, 45 | Map, Photo |
| Leguminosae | Lotus unifoliolatus | , American bird's-foot trefoil | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Lupinus argenteus | , silvery lupine | ADAMS, BILLINGS, BOWMAN, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, MOUNTRAIL, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 4, 6, 7, 13, 18, 24, 27, 29, 32, 39, 41, 43, 45 | Map, Photo, Photo |
| Leguminosae | Lupinus caudatus | , tailcup lupine | HETTINGER, MCLEAN | 39, 41, 45 | Map |
| Leguminosae | Lupinus parviflorus | , lodgepole lupine | BILLINGS, BOWMAN, GOLDEN VALLEY, GRANT, HETTINGER, SIOUX, SLOPE, STARK, WILLIAMS | 29, 39, 41, 43 | Map |
| Leguminosae | Lupinus pusillus | , rusty lupine | BILLINGS, BOWMAN, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MORTON, SIOUX, SLOPE, STARK, WALSH | 1, 3, 6, 7, 7, 18, 24, 27, 29, 31, 32, 39, 41, 43, 45 | Map |
| Leguminosae | Lupinus ×alpestris | , Great Basin lupine | HETTINGER | 45 | Map |
| Caryophyllaceae | Lychnis chalcedonica | , maltesecross | BENSON, DICKEY, LAMOURE, MCINTOSH, ROLETTE, SHERIDAN. Introduced. | 2, 5, 18, 29, 31, 39, 43 | Map |
| Solanaceae | Lycium barbarum | , matrimony vine | BURLEIGH, DICKEY, DUNN, LAMOURE, MCKENZIE, STARK. Introduced. | 1, 2, 5, 24, 27, 29, 39, 43 | Map |
| Lycopodiaceae | Lycopodium complanatum | , groundcedar | CASS | 3, 5, 5, 23, 34, 43 | Map |
| Labiatae | Lycopus americanus | , American water horehound | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Lycopus asper | , rough bugleweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 12, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Lycopus uniflorus | , northern bugleweed | BARNES, BENSON, BOTTINEAU, CASS, EMMONS, FOSTER, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH, WARD | 1, 4, 5, 6, 15, 16, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Compositae | Lygodesmia juncea | , rush skeletonplant | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Primulaceae | Lysimachia ciliata | , fringed loosestrife | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 13, 14, 15, 16, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Primulaceae | Lysimachia hybrida | , lowland yellow loosestrife | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MOUNTRAIL, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, TRAILL, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 10, 11, 13, 15, 16, 17, 21, 25, 26, 28, 29, 31, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo |
| Primulaceae | Lysimachia lanceolata | , lanceleaf loosestrife | BARNES, BENSON, CASS, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN | 1, 3, 7, 18, 25, 45, 47 | Map |
| Primulaceae | Lysimachia quadriflora | , fourflower yellow loosestrife | BARNES, BENSON, CASS, GRAND FORKS, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 6, 7, 7, 15, 16, 25, 26, 27, 29, 39, 41, 43, 45, 47 | Map |
| Primulaceae | Lysimachia thyrsiflora | , tufted loosestrife | BARNES, BENSON, BOTTINEAU, BURKE, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, NELSON, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, WARD | 1, 3, 4, 5, 6, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Primulaceae | Lysimachia verticillata | , loosestrife | BENSON, GRAND FORKS | 7, 18, 27, 45 | Map |
| Lythraceae | Lythrum alatum | , winged lythrum | RANSOM, RICHLAND, SARGENT | 1, 3, 5, 15, 16, 25, 26, 27, 29, 39, 41, 43, 45 | Map |
| Lythraceae | Lythrum salicaria | , purple loosestrife | BARNES, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 4, 5, 6, 7, 11, 15, 16, 25, 26, 29, 36, 37, 39, 40, 43, 45 | Map, Photo |
| Compositae | Machaeranthera canescens | , hoary tansyaster | BILLINGS, BOWMAN, BURKE, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, MCKENZIE, MERCER, MOUNTRAIL, SHERIDAN, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 13, 18, 24, 27, 29, 31, 32, 39, 41, 43, 43, 45, 45, 47 | Map |
| Compositae | Machaeranthera grindelioides | , rayless tansyaster | BENSON, BILLINGS, BOWMAN, DIVIDE, DUNN, GOLDEN VALLEY, MCKENZIE, MOUNTRAIL, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 5, 7, 13, 18, 24, 27, 29, 32, 34, 39, 41, 43, 43, 45, 47 | Map, Photo |
| Compositae | Machaeranthera pinnatifida | , lacy tansyaster | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 8, 11, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 41, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Madia glomerata | , mountain tarweed | BENSON, HETTINGER, WILLIAMS | 5, 13, 18, 27, 29, 33, 35, 39, 43, 45, 47 | Map |
| Berberidaceae | Mahonia repens | , creeping barberry | BILLINGS, BOWMAN, SLOPE | 1, 29, 32, 33, 34, 35, 39, 41, 43, 47 | Map |
| Asparagaceae | Maianthemum canadense | , Canada mayflower | BENSON, BOTTINEAU, CAVALIER, EDDY, GRAND FORKS, MCLEAN, PEMBINA, RAMSEY, RICHLAND, ROLETTE, STEELE, TRAILL, WALSH | 1, 3, 4, 5, 6, 7, 14, 18, 21, 25, 26, 27, 28, 29, 30, 39, 41, 42, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Asparagaceae | Maianthemum racemosum | , feathery false lily of the valley | CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 6, 7, 10, 14, 18, 25, 26, 27, 29, 30, 39, 41, 45, 45, 47 | Map |
| Asparagaceae | Maianthemum stellatum | , starry false lily of the valley | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Malus pumila | , paradise apple | BURLEIGH, MERCER, MORTON, STARK. Introduced. | 4, 45 | Map, Photo, Photo |
| Rosaceae | Malus sylvestris | , European crab apple | GRAND FORKS. Introduced. | 7 | Map |
| Malvaceae | Malva alcea | , vervain mallow | GRAND FORKS. Introduced. | 7 | Map |
| Malvaceae | Malva moschata | , musk mallow | GRAND FORKS. Introduced. | 7 | Map |
| Malvaceae | Malva neglecta | , common mallow | BARNES, BENSON, CASS, CAVALIER, DICKEY, GRAND FORKS, LAMOURE, MCLEAN, PEMBINA, PIERCE, SARGENT, STUTSMAN, WALSH. Introduced. | 1, 2, 4, 5, 11, 18, 25, 26, 27, 29, 30, 39, 40, 43, 45, 47 | Map, Photo, Photo |
| Malvaceae | Malva parviflora | , cheeseweed mallow | ADAMS, BARNES, BENSON, BILLINGS, BOWMAN, BURKE, BURLEIGH, CASS, DIVIDE, EMMONS, GOLDEN VALLEY, GRANT, LAMOURE, LOGAN, MCHENRY, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RENVILLE, SHERIDAN, SLOPE, STUTSMAN, TRAILL, WARD, WILLIAMS. Introduced. | 1, 3, 4, 5, 11, 17, 18, 27, 29, 39, 40, 43, 45, 47 | Map, Photo |
| Malvaceae | Malva pusilla | , low mallow | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 43, 45, 45, 47 | Map, Photo, Photo, Photo |
| Malvaceae | Malva sylvestris | , high mallow | BARNES, CASS, DICKEY, DUNN, GRAND FORKS, LAMOURE, MCKENZIE, SHERIDAN, STARK, STUTSMAN. Introduced. | 1, 2, 3, 5, 7, 11, 18, 18, 24, 27, 29, 39, 43, 47 | Map |
| Malvaceae | Malva verticillata | , cluster mallow | BURLEIGH, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, NELSON. Introduced. | 1, 3, 5, 18, 27, 29, 31, 39, 43, 47 | Map |
| Polypodiaceae | Marsilea vestita | , hairy waterclover | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, RAMSEY, SARGENT, SLOPE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 22, 23, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map |
| Compositae | Matricaria discoidea | , disc mayweed | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 40, 42, 43, 44, 47 | Map, Photo, Photo, Photo |
| Compositae | Matricaria recutita | , German chamomile | BURKE, CAVALIER, EMMONS, FOSTER, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MORTON, NELSON, PEMBINA, RAMSEY, RENVILLE, SHERIDAN, WARD. Introduced. | 4, 5, 6, 7, 18, 19, 27, 29, 31, 39, 43, 43, 44, 47 | Map, Photo |
| Leguminosae | Medicago lupulina | , black medick | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Medicago sativa | , alfalfa | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Melilotus officinalis | , sweetclover | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 1, 2, 2, 3, 4, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 13, 13, 14, 17, 17, 19, 19, 21, 21, 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 30, 30, 31, 31, 32, 32, 39, 40, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Menispermaceae | Menispermum canadense | , common moonseed | BARNES, CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, SHERIDAN, STUTSMAN, WELLS | 1, 3, 4, 5, 6, 7, 11, 14, 18, 25, 26, 27, 29, 30, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Labiatae | Mentha arvensis | , wild mint | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Mentha spicata | , spearmint | GRAND FORKS. Introduced. | 7 | Map |
| Labiatae | Mentha ×piperita | , peppermint | RAMSEY | 45 | Map |
| Loasaceae | Mentzelia decapetala | , tenpetal blazingstar | ADAMS, BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 17, 18, 24, 25, 26, 27, 29, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Loasaceae | Mentzelia dispersa | , bushy blazingstar | BILLINGS, GOLDEN VALLEY, MORTON, SLOPE | 7, 27, 29, 32, 39, 41, 43, 45, 47 | Map |
| Loasaceae | Mentzelia pumila | , dwarf mentzelia | SLOPE | 5, 29, 34, 35, 39, 41, 43 | Map |
| Menyanthaceae | Menyanthes trifoliata | , buckbean | BOTTINEAU, MCHENRY, RANSOM, RICHLAND | 4, 5, 5, 6, 7, 15, 16, 18, 25, 26, 27, 29, 33, 34, 35, 39, 43, 45 | Map, Photo |
| Boraginaceae | Mertensia lanceolata | , prairie bluebells | BILLINGS, BOTTINEAU, BOWMAN, BURKE, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 12, 13, 17, 24, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45 | Map |
| Boraginaceae | Mertensia oblongifolia | , oblongleaf bluebells | GRANT, MOUNTRAIL, WARD, WILLIAMS | 1, 4, 29, 39, 43 | Map, Photo, Photo |
| Phrymaceae | Mimulus glabratus | , roundleaf monkeyflower | BARNES, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, NELSON, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 3, 6, 7, 7, 8, 11, 14, 15, 16, 18, 19, 25, 26, 27, 29, 31, 39, 41, 43, 45 | Map |
| Phrymaceae | Mimulus guttatus | , seep monkeyflower | GRAND FORKS, RICHLAND | 1, 5, 7, 14, 15, 16, 26, 29, 33, 34, 35, 39, 41, 43 | Map |
| Phrymaceae | Mimulus ringens | , Allegheny monkeyflower | BARNES, BENSON, BOTTINEAU, CASS, DICKEY, EDDY, FOSTER, GRAND FORKS, GRIGGS, LAMOURE, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TRAILL, WALSH | 1, 2, 3, 4, 5, 6, 7, 8, 11, 14, 15, 16, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo |
| Caryophyllaceae | Minuartia dawsonensis | , rock stitchwort | CAVALIER | 5, 29, 34, 39, 41, 43, 47 | Map |
| Nyctaginaceae | Mirabilis albida | , white four o'clock | ADAMS, BENSON, BILLINGS, CASS, GOLDEN VALLEY, MCLEAN, PEMBINA, RANSOM, ROLETTE, STARK, TOWNER, TRAILL, WARD | 3, 4, 5, 18, 27, 29, 39, 45, 47 | Map |
| Nyctaginaceae | Mirabilis hirsuta | , hairy four o'clock | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 41, 43 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Nyctaginaceae | Mirabilis linearis | , narrowleaf four o'clock | ADAMS, BARNES, BILLINGS, BOWMAN, DUNN, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, MERCER, MORTON, MOUNTRAIL, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 12, 13, 17, 18, 24, 26, 29, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Nyctaginaceae | Mirabilis nyctaginea | , heartleaf four o'clock | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Saxifragaceae | Mitella nuda | , naked miterwort | CAVALIER, PEMBINA, ROLETTE | 1, 3, 5, 7, 7, 15, 16, 27, 29, 30, 33, 34, 35, 39, 41, 42, 43, 47 | Map |
| Caryophyllaceae | Moehringia lateriflora | , bluntleaf sandwort | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Molluginaceae | Mollugo verticillata | , green carpetweed | CASS, STUTSMAN | 1, 3, 5, 11, 27, 29, 39, 43, 45, 47 | Map |
| Labiatae | Moluccella laevis | , shellflower | WARD. Introduced. | 17 | Map |
| Labiatae | Monarda fistulosa | , wild bergamot | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Monolepis nuttalliana | , Nuttall's povertyweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TRAILL, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 11, 13, 17, 18, 24, 25, 26, 27, 28, 29, 31, 32, 39, 43, 45, 47 | Map, Photo, Photo |
| Ericaceae | Monotropa uniflora | , Indianpipe | BOTTINEAU, CAVALIER, DUNN, MCKENZIE, PEMBINA, RANSOM, ROLETTE, STARK | 1, 3, 5, 6, 7, 18, 24, 25, 26, 27, 28, 29, 33, 34, 39, 41, 42, 43, 47 | Map, Photo, Photo |
| Moraceae | Morus alba | , white mulberry | CASS, SIOUX. Introduced. | 1, 29, 39, 40, 43, 48 | Map |
| Gramineae | Muhlenbergia asperifolia | , scratchgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Muhlenbergia cuspidata | , plains muhly | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Muhlenbergia filiformis | , pullup muhly | BURKE | 5, 29, 34, 35, 39, 41, 43 | Map |
| Gramineae | Muhlenbergia frondosa | , wirestem muhly | CASS, DICKEY, GRAND FORKS, LAMOURE, MCHENRY, MCLEAN, PEMBINA, RANSOM, RICHLAND, SARGENT, TRAILL | 1, 2, 4, 5, 7, 14, 25, 26, 29, 39, 41, 42, 43, 45 | Map, Photo, Photo |
| Gramineae | Muhlenbergia glomerata | , spiked muhly | BARNES, BOTTINEAU, CAVALIER, EDDY, EMMONS, KIDDER, MCHENRY, NELSON, RICHLAND, STARK, STUTSMAN | 1, 4, 5, 6, 8, 15, 16, 19, 29, 39, 41, 43, 45 | Map, Photo, Photo, Photo |
| Gramineae | Muhlenbergia mexicana | , Mexican muhly | BARNES, BENSON, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SHERIDAN, STUTSMAN, WALSH | 1, 2, 3, 4, 5, 7, 8, 14, 15, 16, 18, 19, 21, 27, 27, 29, 31, 39, 41, 42, 43, 45, 45 | Map, Photo |
| Gramineae | Muhlenbergia minutissima | , annual muhly | DIVIDE | 4 | Map |
| Gramineae | Muhlenbergia racemosa | , marsh muhly | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45 | Map, Photo |
| Gramineae | Muhlenbergia richardsonis | , mat muhly | ADAMS, BARNES, BENSON, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, NELSON, OLIVER, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Munroa squarrosa | , false buffalograss | BILLINGS, EMMONS, GOLDEN VALLEY, GRANT, MCLEAN, SLOPE, STARK | 1, 3, 5, 18, 24, 27, 29, 31, 32, 39, 41, 43, 43 | Map |
| Umbelliferae | Musineon divaricatum | , leafy wildparsley | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 12, 13, 17, 18, 24, 27, 28, 31, 32, 39, 41, 42, 43, 44, 45 | Map |
| Ranunculaceae | Myosurus apetalus | , bristly mousetail | DIVIDE, KIDDER, MORTON, SLOPE, STARK, WARD, WILLIAMS | 5, 5, 17, 29, 32, 33, 35, 39, 41, 43, 47 | Map |
| Ranunculaceae | Myosurus minimus | , tiny mousetail | ADAMS, BOTTINEAU, BURKE, CASS, DIVIDE, EMMONS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, SIOUX, STARK, WARD, WILLIAMS | 1, 4, 5, 13, 16, 24, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Haloragaceae | Myriophyllum heterophyllum | , twoleaf watermilfoil | BARNES, BOTTINEAU, LAMOURE, MCHENRY, STUTSMAN | 1, 3, 7, 11, 27, 29, 33, 35, 39, 41, 43 | Map |
| Haloragaceae | Myriophyllum pinnatum | , cutleaf watermilfoil | BARNES, DICKEY, LAMOURE, LOGAN, STUTSMAN | 2, 5, 6, 15, 16, 18, 29, 34, 35, 39, 43 | Map |
| Haloragaceae | Myriophyllum sibiricum | , shortspike watermilfoil | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 2, 4, 5, 5, 7, 8, 16, 17, 19, 21, 24, 27, 28, 29, 39, 41, 43, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Haloragaceae | Myriophyllum spicatum | , Eurasian watermilfoil | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 3, 5, 6, 7, 11, 13, 15, 18, 25, 26, 29, 31, 32, 39, 40 | Map |
| Haloragaceae | Myriophyllum verticillatum | , whorl-leaf watermilfoil | BOTTINEAU, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, NELSON, RICHLAND, STARK, STUTSMAN, TOWNER, WALSH, WARD, WILLIAMS | 1, 4, 5, 6, 7, 11, 15, 16, 24, 29, 31, 39, 41, 43 | Map, Photo, Photo, Photo |
| Hydrocharitaceae | Najas flexilis | , nodding waternymph | BOTTINEAU, CASS, MCHENRY, NELSON, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STUTSMAN | 1, 5, 5, 9, 15, 16, 26, 27, 29, 34, 39, 41, 43, 47 | Map |
| Hydrocharitaceae | Najas guadalupensis | , southern waternymph | EMMONS, KIDDER, LOGAN, MCINTOSH | 1, 5, 15, 16, 29, 31, 33, 34, 35, 39, 41, 43 | Map |
| Hydrocharitaceae | Najas marina | , spiny naiad | MORTON, RANSOM, RICHLAND, SARGENT | 5, 15, 16, 26, 29, 33, 34, 35, 39, 43, 47 | Map |
| Polemoniaceae | Nama jamaicensis | , Jamaicanweed | CASS | 5 | Map |
| Gramineae | Nassella viridula | , green needlegrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polemoniaceae | Navarretia saximontana | , Rocky Mountain Pincushion-Plant | BILLINGS, BURLEIGH, GRANT, HETTINGER, KIDDER, MCKENZIE, MORTON, MOUNTRAIL, RAMSEY, WARD, WILLIAMS | 1, 3, 4, 5, 6, 13, 17, 18, 24, 27, 32, 39, 41, 43 | Map |
| Labiatae | Nepeta cataria | , catnip | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Neslia paniculata | , ballmustard | BOTTINEAU, CASS, CAVALIER, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, NELSON, PEMBINA, RENVILLE, STUTSMAN, WARD. Introduced. | 1, 3, 4, 11, 18, 27, 28, 29, 31, 39, 43 | Map |
| Solanaceae | Nicandra physalodes | , apple of Peru | LAMOURE. Introduced. | 5, 18, 39 | Map |
| Compositae | Nothocalais cuspidata | , prairie false dandelion | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, GRIGGS, KIDDER, LOGAN, MCINTOSH, OLIVER, RANSOM, RENVILLE, SIOUX, SLOPE, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 5, 7, 8, 11, 13, 17, 18, 19, 24, 27, 28, 29, 31, 32, 39, 43, 47 | Map, Photo, Photo, Photo |
| Nymphaeaceae | Nuphar variegata | , varigated yellow pond-lily | BARNES, BOTTINEAU, BURLEIGH, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCINTOSH, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN | 1, 3, 4, 5, 6, 7, 11, 15, 16, 18, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Plantaginaceae | Nuttallanthus texanus | , Texas toadflax | GRANT, MORTON | 1, 5, 29, 29, 39, 41, 43 | Map |
| Onagraceae | Oenothera albicaulis | , whitest evening primrose | ADAMS, BILLINGS, BOWMAN, DUNN, GOLDEN VALLEY, GRANT, MCKENZIE, RANSOM, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 3, 4, 5, 6, 7, 13, 18, 18, 24, 27, 29, 32, 39, 41, 43, 45 | Map |
| Onagraceae | Oenothera biennis | , common evening primrose | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DIVIDE, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 10, 12, 13, 14, 21, 25, 26, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Onagraceae | Oenothera caespitosa | , tufted evening primrose | BILLINGS, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, SHERIDAN, SIOUX, SLOPE, STARK, WILLIAMS | 1, 4, 5, 6, 7, 12, 13, 18, 24, 27, 29, 31, 32, 39, 41, 43, 45, 45 | Map, Photo, Photo |
| Onagraceae | Oenothera flava | , yellow evening primrose | BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DIVIDE, DUNN, HETTINGER, MCHENRY, MCKENZIE, MCLEAN, MOUNTRAIL, PEMBINA, RAMSEY, SLOPE, STARK, TOWNER, WARD | 1, 4, 5, 13, 18, 21, 24, 27, 28, 29, 30, 32, 39, 41, 43, 45 | Map |
| Onagraceae | Oenothera laciniata | , cutleaf evening primrose | BILLINGS, GRANT, MCHENRY | 1, 3, 5, 7, 27, 29, 32, 33, 35, 39, 41, 43 | Map |
| Onagraceae | Oenothera latifolia | , mountain evening primrose | ADAMS, WARD | 4 | Map |
| Onagraceae | Oenothera nuttallii | , Nuttall's evening primrose | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 8, 9, 11, 13, 14, 17, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Onagraceae | Oenothera pallida | , pale evening primrose | BENSON, GRAND FORKS, MCHENRY, RANSOM | 5, 7 | Map |
| Onagraceae | Oenothera rhombipetala | , fourpoint evening primrose | GRAND FORKS, RICHLAND | 3, 5, 7, 27, 29, 33, 35, 39, 43 | Map |
| Onagraceae | Oenothera villosa | , hairy evening primrose | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 7, 8, 11, 17, 19, 21, 24, 26, 27, 28, 29, 32, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Oligoneuron album | , prairie goldenrod | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Oligoneuron riddellii | , Riddell's goldenrod | RICHLAND | 16, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43 | Map |
| Compositae | Oligoneuron rigidum | , stiff goldenrod | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Onobrychis viciifolia | , sainfoin | STUTSMAN. Introduced. | 6 | Map |
| Polypodiaceae | Onoclea sensibilis | , sensitive fern | PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 6, 15, 16, 22, 23, 25, 26, 27, 29, 30, 33, 34, 35, 39, 41, 43, 47 | Map |
| Polypodiaceae | Onoclea struthiopteris | , ostrich fern | BOTTINEAU, CASS, GRAND FORKS, GRIGGS, MORTON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WALSH | 1, 3, 4, 5, 6, 14, 15, 16, 22, 23, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Onopordum acanthium | , Scotch cottonthistle | BOWMAN. Introduced. | 36, 40 | Map |
| Boraginaceae | Onosmodium bejariense | , soft-hair marbleseed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ophioglossaceae | Ophioglossum vulgatum | , southern adderstongue | RANSOM, RICHLAND, SARGENT | 5, 5, 7, 7, 15, 16, 22, 23, 26, 29, 33, 34, 39, 41, 43, 47 | Map |
| Cactaceae | Opuntia fragilis | , brittle pricklypear | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, OLIVER, PIERCE, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 12, 13, 19, 24, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Cactaceae | Opuntia polyacantha | , plains pricklypear | BILLINGS, BURKE, BURLEIGH, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, SHERIDAN, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 12, 13, 17, 18, 24, 27, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Labiatae | Origanum vulgare | , oregano | TRAILL. Introduced. | 5 | Map |
| Orobanchaceae | Orobanche fasciculata | , clustered broomrape | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, RAMSEY, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 27, 28, 29, 31, 32, 39, 41, 42, 43, 45 | Map, Photo, Photo |
| Orobanchaceae | Orobanche ludoviciana | , Louisiana broomrape | BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, PEMBINA, RANSOM, SHERIDAN, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 8, 12, 13, 17, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map, Photo |
| Orobanchaceae | Orobanche uniflora | , oneflowered broomrape | CASS | 1, 3, 5, 5, 27, 29, 34, 39, 41, 43 | Map |
| Ericaceae | Orthilia secunda | , sidebells wintergreen | BARNES, BILLINGS, BOTTINEAU, CASS, DUNN, GRAND FORKS, MCKENZIE, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WARD | 1, 3, 4, 5, 5, 7, 11, 14, 17, 24, 26, 27, 28, 29, 30, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Orobanchaceae | Orthocarpus luteus | , yellow owl's-clover | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Oryzopsis asperifolia | , roughleaf ricegrass | BARNES, BENSON, BILLINGS, BOTTINEAU, CAVALIER, DUNN, GRAND FORKS, PEMBINA, RAMSEY, RICHLAND, ROLETTE, STEELE | 1, 3, 4, 5, 7, 7, 11, 14, 18, 21, 24, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45 | Map, Photo, Photo |
| Umbelliferae | Osmorhiza claytonii | , Clayton's sweetroot | BARNES, BENSON, BOTTINEAU, CASS, GRAND FORKS, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK | 1, 4, 5, 5, 7, 11, 14, 25, 26, 28, 29, 35, 39, 41, 43, 45 | Map, Photo |
| Umbelliferae | Osmorhiza longistylis | , longstyle sweetroot | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 4, 5, 6, 7, 8, 11, 13, 14, 17, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polypodiaceae | Osmunda cinnamomea | , cinnamon fern | RANSOM | 45 | Map |
| Betulaceae | Ostrya virginiana | , hophornbeam | BARNES, CASS, CAVALIER, GRAND FORKS, MCLEAN, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, WALSH | 1, 3, 4, 5, 6, 7, 11, 14, 18, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47, 48 | Map, Photo, Photo, Photo, Photo |
| Oxalidaceae | Oxalis corniculata | , creeping woodsorrel | CASS | 7, 29, 39, 45 | Map |
| Oxalidaceae | Oxalis dillenii | , slender yellow woodsorrel | BARNES, BILLINGS, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STUTSMAN | 1, 2, 7, 11, 24, 25, 26, 29, 31, 32, 39, 41, 45, 47 | Map |
| Oxalidaceae | Oxalis stricta | , common yellow oxalis | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 6, 7, 7, 8, 9, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 27, 28, 28, 29, 30, 31, 32, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Oxalidaceae | Oxalis violacea | , violet woodsorrel | BARNES, CASS, DICKEY, DUNN, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, RANSOM, RICHLAND, SARGENT, TRAILL | 1, 2, 3, 6, 7, 7, 11, 18, 25, 26, 27, 29, 31, 39, 41, 42, 43, 45, 47 | Map |
| Leguminosae | Oxytropis campestris | , field locoweed | ADAMS, BENSON, BILLINGS, BOTTINEAU, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, LOGAN, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, RAMSEY, RENVILLE, SHERIDAN, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 11, 13, 17, 18, 19, 24, 28, 29, 31, 32, 34, 39, 43, 44, 45, 45 | Map, Photo, Photo, Photo |
| Leguminosae | Oxytropis deflexa | , nodding locoweed | BOTTINEAU, CAVALIER, PEMBINA, ROLETTE | 3, 4, 5, 27, 28, 29, 30, 33, 34, 35, 39, 41, 42, 43, 45 | Map |
| Leguminosae | Oxytropis lambertii | , purple locoweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Oxytropis monticola | , yellowflower locoweed | BENSON, BILLINGS, BURKE, DIVIDE, DUNN, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, MCHENRY, MCLEAN, MERCER, MORTON, MOUNTRAIL, PIERCE, RENVILLE, SHERIDAN, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 3, 4, 27, 29, 39, 41, 43 | Map |
| Leguminosae | Oxytropis riparia | , Oxus locoweed | CASS. Introduced. | 29, 39, 45 | Map |
| Leguminosae | Oxytropis sericea | , white locoweed | BENSON, BILLINGS, LOGAN, NELSON, SLOPE, WARD | 1, 4, 27, 32, 34, 35, 39, 43, 45 | Map, Photo, Photo, Photo |
| Leguminosae | Oxytropis splendens | , showy locoweed | BARNES, BENSON, BOTTINEAU, BURKE, CAVALIER, DIVIDE, GRAND FORKS, GRIGGS, NELSON, PEMBINA, PIERCE, RAMSEY, RENVILLE, ROLETTE, STARK, STEELE | 1, 3, 4, 5, 6, 7, 11, 13, 18, 21, 27, 28, 29, 30, 39, 41, 43, 44, 45 | Map, Photo |
| Compositae | Packera aurea | , golden ragwort | BOTTINEAU, GRAND FORKS, NELSON, STUTSMAN | 3, 5, 7, 9, 14, 27, 28, 39, 47 | Map |
| Compositae | Packera cana | , woolly groundsel | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRANT, GRIGGS, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, ROLETTE, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 24, 27, 28, 29, 31, 32, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Packera paupercula | , balsam groundsel | BENSON, BOTTINEAU, CASS, DICKEY, GRAND FORKS, MCHENRY, RANSOM, RICHLAND | 1, 3, 5, 5, 7, 25, 26, 27, 28, 29, 39, 41, 43, 43, 47 | Map |
| Compositae | Packera plattensis | , prairie groundsel | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Packera pseudaurea | , falsegold groundsel | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, OLIVER, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, SARGENT, STUTSMAN, TRAILL, WARD, WELLS | 1, 4, 5, 6, 7, 8, 11, 15, 16, 18, 19, 25, 26, 29, 30, 31, 39, 41, 43, 43, 45, 47 | Map, Photo |
| Compositae | Packera tridenticulata | , threetooth ragwort | BENSON, EMMONS, KIDDER, LAMOURE, MCHENRY, RANSOM, RICHLAND, TRAILL | 1, 4, 5, 5, 18, 25, 26, 29, 31, 33, 34, 35, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Gramineae | Panicum capillare | , witchgrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 16, 17, 17, 18, 19, 21, 24, 25, 26, 27, 27, 28, 29, 29, 30, 31, 32, 39, 41, 41, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Panicum virgatum | , switchgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Papaveraceae | Papaver rhoeas | , corn poppy | BENSON. Introduced. | 27, 29, 39 | Map |
| Papaveraceae | Papaver somniferum | , opium poppy | BENSON, BOTTINEAU. Introduced. | 7, 29, 39, 45, 47 | Map |
| Urticaceae | Parietaria pensylvanica | , Pennsylvania pellitory | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Celastraceae | Parnassia caroliniana | , Carolina grass of Parnassus | RANSOM | 3, 7, 18 | Map |
| Celastraceae | Parnassia glauca | , fen grass of Parnassus | BARNES, BOTTINEAU, CASS, EDDY, MCHENRY, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 4, 8, 11, 15, 16, 19, 25, 26, 27, 28, 29, 30, 39, 41, 43, 47 | Map, Photo, Photo |
| Celastraceae | Parnassia palustris | , marsh grass of Parnassus | BARNES, BENSON, BOTTINEAU, BURKE, DIVIDE, EDDY, EMMONS, FOSTER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 15, 16, 17, 18, 18, 19, 25, 26, 27, 28, 29, 30, 31, 35, 39, 39, 41, 43, 45, 47 | Map |
| Caryophyllaceae | Paronychia sessiliflora | , creeping nailwort | ADAMS, BILLINGS, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, GOLDEN VALLEY, GRANT, KIDDER, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 7, 13, 17, 18, 24, 27, 29, 31, 32, 39, 41, 43, 47 | Map, Photo, Photo, Photo, Photo |
| Vitaceae | Parthenocissus quinquefolia | , Virginia creeper | BOTTINEAU, CASS, EMMONS, GRAND FORKS, PEMBINA, RANSOM, SIOUX, STUTSMAN, WARD | 3, 4, 5, 6, 7, 7, 14, 18, 27, 28, 39, 42, 43, 44 | Map, Photo |
| Vitaceae | Parthenocissus vitacea | , woodbine | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 11, 13, 19, 21, 24, 25, 26, 29, 30, 31, 32, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Pascopyrum smithii | , western wheatgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Paspalum setaceum | , thin paspalum | WARD | 4 | Map, Photo |
| Umbelliferae | Pastinaca sativa | , wild parsnip | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DIVIDE, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MCLEAN, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TOWNER, WARD, WILLIAMS. Introduced. | 1, 3, 4, 5, 6, 7, 11, 13, 17, 18, 25, 26, 27, 28, 29, 30, 31, 39, 40, 43, 45 | Map |
| Gramineae | Patis racemosa | , blackseed ricegrass | BARNES, BOTTINEAU, CASS, GRAND FORKS, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 3, 4, 6, 7, 11, 14, 25, 26, 27, 28, 29, 39, 41, 42, 43, 45 | Map, Photo |
| Orobanchaceae | Pedicularis canadensis | , Canadian lousewort | GRAND FORKS, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT | 1, 5, 6, 7, 14, 15, 16, 25, 26, 27, 29, 39, 41, 43 | Map, Photo, Photo, Photo |
| Orobanchaceae | Pedicularis lanceolata | , swamp lousewort | BARNES, BENSON, CASS, EDDY, FOSTER, GRIGGS, MCHENRY, NELSON, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, WALSH | 1, 3, 5, 6, 7, 8, 9, 11, 15, 16, 18, 19, 25, 26, 27, 29, 30, 39, 41, 43, 45 | Map |
| Leguminosae | Pediomelum argophyllum | , silverleaf Indian breadroot | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Pediomelum esculentum | , large Indian breadroot | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polypodiaceae | Pellaea glabella | , smooth cliffbrake | ADAMS, BOWMAN, DUNN, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, MORTON, OLIVER, STARK | 1, 3, 5, 5, 7, 18, 22, 23, 24, 27, 29, 32, 34, 39, 41, 43, 45, 47 | Map |
| Plantaginaceae | Penstemon albidus | , white penstemon | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Plantaginaceae | Penstemon angustifolius | , broadbeard beardtongue | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, SIOUX, SLOPE, STARK, STUTSMAN | 1, 3, 5, 6, 7, 11, 13, 18, 24, 27, 29, 31, 32, 39, 41, 43, 44, 45 | Map |
| Plantaginaceae | Penstemon digitalis | , foxglove beardtongue | EMMONS | 7 | Map |
| Plantaginaceae | Penstemon eriantherus | , fuzzytongue penstemon | ADAMS, BILLINGS, BOWMAN, BURKE, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 4, 5, 6, 7, 13, 24, 27, 29, 31, 32, 39, 41, 42, 43, 45 | Map |
| Plantaginaceae | Penstemon glaber | , sawsepal penstemon | BILLINGS, BOWMAN, BURLEIGH, MORTON, STARK, WILLIAMS | 1, 4, 5, 18, 24, 27, 29, 39, 41, 43, 45 | Map |
| Plantaginaceae | Penstemon gracilis | , lilac penstemon | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Plantaginaceae | Penstemon grandiflorus | , large beardtongue | BARNES, BURLEIGH, CASS, DICKEY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, MORTON, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, WALSH | 1, 2, 3, 4, 5, 6, 7, 11, 18, 25, 26, 27, 29, 31, 39, 41, 43, 45 | Map, Photo, Photo, Photo |
| Plantaginaceae | Penstemon nitidus | , waxleaf penstemon | BILLINGS, BOWMAN, BURLEIGH, CAVALIER, DIVIDE, DUNN, GOLDEN VALLEY, GRANT, MCHENRY, MCKENZIE, MERCER, MORTON, MOUNTRAIL, SIOUX, SLOPE, STARK, WILLIAMS | 1, 4, 5, 6, 7, 13, 24, 27, 29, 32, 39, 41, 43, 45 | Map, Photo |
| Plantaginaceae | Penstemon procerus | , littleflower penstemon | BURKE | 4, 5, 13, 29, 33, 34, 35, 39, 41, 43 | Map |
| Haloragaceae | Penthorum sedoides | , ditch stonecrop | CASS, CAVALIER, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, TRAILL | 1, 3, 4, 7, 15, 16, 18, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Compositae | Petasites frigidus | , arctic sweet coltsfoot | BENSON, BOTTINEAU, CAVALIER, MCHENRY, PEMBINA, PIERCE, ROLETTE | 1, 3, 4, 5, 5, 6, 7, 15, 15, 16, 18, 27, 28, 29, 30, 33, 34, 35, 39, 41, 43, 43, 45, 47 | Map, Photo |
| Hydrophyllaceae | Phacelia hastata | , silverleaf phacelia | BILLINGS, BOWMAN, GOLDEN VALLEY, SLOPE | 1, 3, 5, 6, 18, 27, 29, 32, 39, 41, 43, 45 | Map |
| Gramineae | Phalaris arundinacea | , reed canarygrass | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 40, 42, 43, 44, 45, 48 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Phalaris canariensis | , annual canarygrass | CASS, LAMOURE, RAMSEY, STUTSMAN, WILLIAMS. Introduced. | 1, 3, 5, 7, 13, 18, 21, 27, 29, 39, 40 | Map |
| Montiaceae | Phemeranthus parviflorus | , sunbright | GRANT, HETTINGER, MORTON, SIOUX, SLOPE | 1, 3, 4, 5, 5, 12, 27, 29, 33, 34, 35, 39, 41, 43, 43, 47 | Map, Photo |
| Hydrangeaceae | Philadelphus coronarius | , sweet mock orange | GRAND FORKS. Introduced. | 7 | Map |
| Gramineae | Phleum pratense | , timothy | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Labiatae | Phlomis tuberosa | , tuberous Jerusalem sage | FOSTER. Introduced. | 5, 19, 29, 39, 43 | Map |
| Polemoniaceae | Phlox alyssifolia | , alyssumleaf phlox | BILLINGS, GOLDEN VALLEY, WILLIAMS | 1, 5, 7, 13, 27, 29, 32, 33, 34, 35, 39, 41, 43 | Map |
| Polemoniaceae | Phlox andicola | , prairie phlox | ADAMS, BILLINGS, BOWMAN, DUNN, EMMONS, GRANT, HETTINGER, KIDDER, LOGAN, MCINTOSH, MORTON, SLOPE, STARK | 1, 5, 24, 27, 29, 31, 32, 39, 41, 43 | Map |
| Polemoniaceae | Phlox divaricata | , wild blue phlox | BENSON | 7 | Map |
| Polemoniaceae | Phlox hoodii | , spiny phlox | BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RENVILLE, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 17, 19, 24, 27, 28, 29, 31, 32, 39, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Polemoniaceae | Phlox paniculata | , garden phlox | ADAMS | 20 | Map |
| Polemoniaceae | Phlox pilosa | , downy phlox | CASS, RICHLAND | 1, 3, 5, 25, 26, 27, 29, 35, 39, 41, 43 | Map |
| Gramineae | Phragmites australis | , common reed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 41, 42, 43, 43, 44, 45, 45, 48 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Phrymaceae | Phryma leptostachya | , American lopseed | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, GRAND FORKS, GRANT, GRIGGS, LAMOURE, MCKENZIE, MERCER, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, TRAILL, WALSH | 1, 2, 3, 4, 5, 6, 7, 8, 11, 14, 19, 24, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo |
| Solanaceae | Physalis heterophylla | , clammy groundcherry | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCLEAN, MERCER, OLIVER, PEMBINA, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 12, 13, 17, 18, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45 | Map, Photo |
| Solanaceae | Physalis hispida | , prairie groundcherry | BURLEIGH, DICKEY, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, SIOUX, STARK, STUTSMAN, WARD | 5, 39 | Map |
| Solanaceae | Physalis longifolia | , longleaf groundcherry | DUNN, GOLDEN VALLEY, MCKENZIE, MORTON, STARK | 24, 29, 39, 41, 43 | Map |
| Solanaceae | Physalis pumila | , dwarf groundcherry | GRAND FORKS | 10 | Map |
| Solanaceae | Physalis virginiana | , Virginia groundcherry | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, WALSH, WARD | 1, 2, 3, 5, 6, 7, 7, 8, 9, 11, 13, 14, 14, 17, 19, 21, 24, 25, 26, 27, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map |
| Cruciferae | Physaria brassicoides | , double twinpod | BILLINGS, MCKENZIE, SLOPE | 5, 7, 24, 27, 29, 32, 39, 41, 43, 47 | Map |
| Cruciferae | Physaria didymocarpa | , common twinpod | BILLINGS, MCKENZIE, SLOPE | 3, 5, 18, 29, 33, 35, 39, 43 | Map |
| Rosaceae | Physocarpus opulifolius | , common ninebark | CASS | 1, 5, 29, 39, 41, 43, 47 | Map |
| Labiatae | Physostegia ledinghamii | , Ledingham's false dragonhead | BURLEIGH, MCLEAN | 16, 29, 34, 39, 41 | Map |
| Labiatae | Physostegia parviflora | , western false dragonhead | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, GRAND FORKS, GRIGGS, LAMOURE, MCHENRY, MCLEAN, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, TOWNER, TRAILL, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 44, 45 | Map |
| Labiatae | Physostegia virginiana | , obedient plant | BARNES, BENSON, CASS, CAVALIER, EDDY, GRAND FORKS, GRIGGS, PEMBINA, RANSOM, RICHLAND, STUTSMAN, TRAILL, WARD | 7, 16, 18, 29, 39, 41, 42, 43, 43, 45, 45 | Map |
| Pinaceae | Picea glauca | , white spruce | EDDY, EMMONS, STARK, STEELE | 4, 19, 42, 45 | Map, Photo, Photo |
| Compositae | Picradeniopsis oppositifolia | , oppositeleaf bahia | BILLINGS, BOWMAN, DIVIDE, GOLDEN VALLEY, GRANT, HETTINGER, MERCER, SLOPE, STARK | 1, 3, 4, 5, 5, 6, 18, 27, 29, 32, 39, 41, 45, 45, 47 | Map, Photo |
| Compositae | Picris echioides | , bristly oxtongue | CASS, MCLEAN. Introduced. | 5, 27, 29, 39, 40, 43, 47 | Map |
| Urticaceae | Pilea fontana | , lesser clearweed | BARNES, BENSON, EDDY, KIDDER, MCHENRY, RANSOM, RICHLAND, SARGENT, STUTSMAN | 5, 6, 7, 15, 16, 18, 18, 25, 26, 29, 31, 33, 39, 41, 43, 45, 47 | Map |
| Urticaceae | Pilea pumila | , Canadian clearweed | BARNES, BENSON, BOTTINEAU, CASS, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH | 1, 3, 4, 5, 5, 7, 11, 15, 16, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Pinaceae | Pinus banksiana | , jack pine | RANSOM, RICHLAND, SARGENT | 25, 26, 29, 39 | Map |
| Pinaceae | Pinus flexilis | , limber pine | BILLINGS, SLOPE | 1, 4, 5, 5, 6, 7, 29, 32, 33, 34, 39, 41, 43, 47 | Map, Photo |
| Pinaceae | Pinus ponderosa | , ponderosa pine | BILLINGS, BOWMAN, BURLEIGH, DUNN, EDDY, EMMONS, GRAND FORKS, MCHENRY, MCKENZIE, MORTON, SHERIDAN, SLOPE, STARK, WELLS, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 8, 18, 19, 27, 29, 32, 33, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Pinaceae | Pinus sylvestris | , Scots pine | CASS, GRAND FORKS. Introduced. | 5, 7 | Map |
| Gramineae | Piptatheropsis micrantha | , littleseed ricegrass | BARNES, BILLINGS, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 13, 18, 24, 27, 29, 31, 32, 39, 41, 43, 45 | Map |
| Gramineae | Piptatheropsis pungens | , mountain ricegrass | CAVALIER | 5, 29, 34, 35, 39, 41, 43 | Map |
| Boraginaceae | Plagiobothrys scouleri | , Scouler's popcornflower | ADAMS, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, DIVIDE, EMMONS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, MOUNTRAIL, SHERIDAN, SIOUX, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 11, 13, 15, 16, 17, 18, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map, Photo |
| Plantaginaceae | Plantago aristata | , largebracted plantain | BILLINGS, GOLDEN VALLEY, SLOPE | 3, 5, 18, 29, 32 | Map |
| Plantaginaceae | Plantago elongata | , prairie plantain | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CAVALIER, DIVIDE, DUNN, EMMONS, GRIGGS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 7, 11, 13, 17, 18, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo |
| Plantaginaceae | Plantago eriopoda | , redwool plantain | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, NELSON, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Plantaginaceae | Plantago lanceolata | , narrowleaf plantain | CASS, GRAND FORKS, STARK, STEELE. Introduced. | 1, 3, 5, 10, 24, 27, 29, 39, 40, 43 | Map |
| Plantaginaceae | Plantago major | , common plantain | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 18, 19, 21, 24, 25, 26, 27, 29, 30, 31, 32, 39, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Plantaginaceae | Plantago patagonica | , woolly plantain | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 32, 39, 41, 42, 43, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Plantaginaceae | Plantago rugelii | , blackseed plantain | BARNES, BOTTINEAU, CASS, DICKEY, EDDY, FOSTER, GRAND FORKS, LAMOURE, MCHENRY, MCLEAN, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN | 1, 2, 3, 4, 5, 7, 8, 11, 19, 25, 26, 27, 29, 39, 41, 43, 44, 45 | Map, Photo, Photo |
| Orchidaceae | Platanthera aquilonis | , northern green orchid | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 5, 6, 7, 8, 10, 11, 13, 14, 15, 16, 18, 19, 21, 24, 25, 26, 27, 29, 30, 31, 39, 41, 42, 43, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Orchidaceae | Platanthera clavellata | , small green wood orchid | GRAND FORKS | 29, 34, 39, 41, 43 | Map |
| Orchidaceae | Platanthera dilatata | , scentbottle | PEMBINA | 43 | Map |
| Orchidaceae | Platanthera praeclara | , Great Plains white fringed orchid | CASS, KIDDER, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 6, 15, 16, 25, 26, 27, 29, 34, 35, 39, 41, 43, 45, 45, 47 | Map |
| Gramineae | Poa annua | , annual bluegrass | BARNES, BOTTINEAU, BURLEIGH, CASS, CAVALIER, GRAND FORKS, GRIGGS, PEMBINA, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, TOWNER, WARD. Introduced. | 1, 3, 5, 7, 11, 17, 25, 26, 27, 28, 29, 30, 39, 40, 43 | Map |
| Gramineae | Poa arida | , plains bluegrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, RANSOM, ROLETTE, SHERIDAN, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 11, 13, 13, 16, 17, 17, 18, 24, 24, 25, 26, 27, 27, 28, 29, 31, 32, 32, 39, 41, 41, 43, 43, 44, 45, 45 | Map |
| Gramineae | Poa bulbosa | , bulbous bluegrass | BURLEIGH, STARK. Introduced. | 5, 24, 27, 29, 39, 40, 41, 43, 45 | Map |
| Gramineae | Poa compressa | , Canada bluegrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 14, 16, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Poa cusickii | , Cusick's bluegrass | BILLINGS, BURKE, DIVIDE, DUNN, GOLDEN VALLEY, MOUNTRAIL, PEMBINA, ROLETTE, SLOPE, WARD, WILLIAMS | 1, 4, 5, 7, 13, 17, 17, 27, 27, 29, 30, 32, 39, 41, 44 | Map |
| Gramineae | Poa fendleriana | , muttongrass | BENSON, BURKE, DIVIDE, ROLETTE | 1, 4, 13, 18, 27, 29, 39, 41, 43 | Map |
| Gramineae | Poa glauca | , glaucous bluegrass | CAVALIER, GRAND FORKS | 7, 18, 43, 43, 45 | Map |
| Gramineae | Poa nemoralis | , wood bluegrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STUTSMAN, TOWNER, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 17, 18, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45, 45 | Map |
| Gramineae | Poa palustris | , fowl bluegrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Poa pratensis | , Kentucky bluegrass | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Poa secunda | , Sandberg bluegrass | BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, RAMSEY, RICHLAND, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 7, 8, 12, 13, 17, 18, 19, 24, 27, 27, 28, 29, 31, 32, 33, 39, 41, 41, 42, 43, 44, 45 | Map, Photo, Photo |
| Gramineae | Poa trivialis | , rough bluegrass | ADAMS. Introduced. | 20 | Map |
| Orchidaceae | Pogonia ophioglossoides | , snakemouth orchid | GRAND FORKS | 29, 39, 41, 43, 47 | Map |
| Cruciferae | Polanisia dodecandra | , redwhisker clammyweed | BILLINGS, CASS, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RICHLAND, SIOUX, SLOPE, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 11, 13, 17, 18, 21, 24, 25, 26, 27, 29, 31, 32, 39, 41, 43, 45, 47 | Map |
| Polemoniaceae | Polemonium micranthum | , annual polemonium | BENSON | 29, 39, 45 | Map |
| Polygalaceae | Polygala alba | , white milkwort | ADAMS, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 17, 18, 19, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygalaceae | Polygala senega | , Seneca snakeroot | BARNES, BENSON, BOTTINEAU, BURKE, CAVALIER, DIVIDE, EDDY, GRIGGS, MCHENRY, MORTON, PIERCE, RANSOM, ROLETTE, STUTSMAN, WILLIAMS | 1, 3, 6, 7, 8, 11, 13, 18, 19, 25, 26, 27, 28, 29, 39, 41, 43, 45 | Map |
| Polygalaceae | Polygala verticillata | , whorled milkwort | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, NELSON, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD | 1, 3, 4, 6, 7, 7, 8, 9, 10, 11, 13, 18, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 45 | Map, Photo, Photo |
| Asparagaceae | Polygonatum biflorum | , smooth Solomon's seal | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 45, 47 | Map, Photo, Photo |
| Polygonaceae | Polygonum achoreum | , leathery knotweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 5, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map |
| Polygonaceae | Polygonum amphibium | , water knotweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 1, 2, 3, 4, 5, 6, 6, 7, 7, 8, 9, 9, 10, 11, 11, 12, 13, 13, 14, 15, 15, 16, 16, 17, 18, 19, 21, 21, 24, 25, 25, 26, 26, 27, 28, 29, 30, 31, 31, 32, 39, 41, 42, 43, 43, 44, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Polygonum arenastrum | , oval-leaf knotweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 5, 6, 8, 11, 19, 21, 24, 26, 29, 31, 43, 45 | Map |
| Polygonaceae | Polygonum aviculare | , prostrate knotweed | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EMMONS, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, MCHENRY, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, TOWNER, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 3, 4, 5, 7, 9, 12, 13, 14, 17, 18, 21, 25, 27, 28, 29, 30, 32, 39, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Polygonum buxiforme | , box knotweed | BARNES, BENSON, BILLINGS, BOWMAN, GOLDEN VALLEY, GRAND FORKS, SLOPE | 7, 7, 18, 27, 29, 32, 41 | Map |
| Polygonaceae | Polygonum convolvulus | , black bindweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 41, 43, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Polygonum douglasii | , Douglas' knotweed | CAVALIER, DUNN, MCKENZIE, NELSON, SLOPE, STARK | 1, 5, 9, 18, 24, 29, 32, 33, 34, 35, 39, 41, 43, 47 | Map |
| Polygonaceae | Polygonum erectum | , erect knotweed | BENSON, BILLINGS, EMMONS, GOLDEN VALLEY, MERCER, RANSOM, SLOPE | 3, 7, 18, 25, 32, 41, 43, 45 | Map |
| Polygonaceae | Polygonum hydropiper | , marshpepper knotweed | BOTTINEAU, CASS, DICKEY, EMMONS, GRAND FORKS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SLOPE, STEELE, STUTSMAN, TRAILL, WALSH. Introduced. | 1, 2, 3, 5, 6, 7, 11, 14, 15, 16, 25, 26, 27, 28, 29, 31, 39, 43, 43, 45, 45, 47 | Map |
| Polygonaceae | Polygonum hydropiperoides | , swamp smartweed | PEMBINA | 1, 15, 16, 29, 34, 35, 39, 41, 43, 47 | Map |
| Polygonaceae | Polygonum lapathifolium | , curlytop knotweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Polygonum leptocarpum | , narrowpoint knotweed | GRANT | 5, 29, 34, 43 | Map |
| Polygonaceae | Polygonum pensylvanicum | , Pennsylvania smartweed | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, TRAILL, WALSH, WARD | 1, 2, 4, 6, 7, 7, 11, 14, 15, 16, 18, 25, 26, 27, 29, 31, 32, 39, 41, 42, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Polygonum persicaria | , spotted ladysthumb | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SHERIDAN, STUTSMAN, WALSH, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 11, 13, 14, 15, 16, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Polygonaceae | Polygonum punctatum | , dotted smartweed | CASS, CAVALIER, EMMONS, GRAND FORKS, RANSOM, RICHLAND | 1, 3, 5, 7, 15, 16, 18, 25, 26, 27, 29, 34, 35, 39, 41, 43, 45, 47 | Map |
| Polygonaceae | Polygonum ramosissimum | , bushy knotweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 13, 16, 17, 18, 19, 21, 24, 25, 26, 27, 27, 28, 29, 30, 30, 31, 32, 32, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo |
| Polygonaceae | Polygonum sagittatum | , arrowleaf tearthumb | BOTTINEAU | 1, 3, 5, 5, 15, 16, 27, 28, 29, 34, 35, 39, 43, 47 | Map |
| Polygonaceae | Polygonum scandens | , climbing false buckwheat | BARNES, BENSON, BILLINGS, BOTTINEAU, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MORTON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT. Introduced. | 1, 3, 5, 7, 11, 18, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 43, 45, 47 | Map |
| Polygonaceae | Polygonum tenue | , pleatleaf knotweed | EMMONS | 7, 43 | Map |
| Gramineae | Polypogon monspeliensis | , annual rabbitsfoot grass | BURLEIGH, DICKEY, DIVIDE, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, RANSOM, SLOPE, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 13, 15, 16, 29, 31, 32, 39, 40, 45 | Map |
| Umbelliferae | Polytaenia nuttallii | , Nuttall's prairie parsley | BILLINGS | 29, 45 | Map |
| Salicaceae | Populus alba | , white poplar | DICKEY, EDDY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, RANSOM, RICHLAND, SARGENT, WARD. Introduced. | 1, 2, 5, 7, 17, 19, 25, 26, 29, 31, 39, 40, 43 | Map |
| Salicaceae | Populus balsamifera | , balsam poplar | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, MCKENZIE, MCLEAN, MERCER, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 25, 26, 27, 27, 29, 30, 32, 33, 34, 35, 39, 42, 43, 44, 47 | Map, Photo, Photo |
| Salicaceae | Populus deltoides | , eastern cottonwood | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo |
| Salicaceae | Populus nigra | , Lombardy poplar | GRAND FORKS, RAMSEY, RANSOM. Introduced. | 7, 21, 29, 39 | Map |
| Salicaceae | Populus tremuloides | , quaking aspen | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Salicaceae | Populus ×acuminata | , lanceleaf cottonwood | BILLINGS, SLOPE | 1, 5, 7, 29, 32, 33, 35, 39, 41, 43 | Map |
| Salicaceae | Populus ×brayshawii | , hybrid balsam poplar | BOTTINEAU, DIVIDE | 39 | Map |
| Salicaceae | Populus ×canadensis | , Canadian poplar | CASS, STARK | 24, 29, 39, 43 | Map |
| Salicaceae | Populus ×jackii | , balm-of-Gilead | BILLINGS, BURKE, GRANT, WARD | 5, 29, 39, 41 | Map |
| Cactaceae | Portulaca oleracea | , little hogweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 17, 19, 25, 26, 27, 28, 29, 30, 31, 32, 39, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Potamogetonaceae | Potamogeton amplifolius | , largeleaf pondweed | BARNES, BILLINGS, GRAND FORKS, MCLEAN, OLIVER, RANSOM | 1, 5, 5, 7, 11, 14, 15, 16, 25, 26, 29, 32, 33, 34, 35, 39, 41, 43 | Map |
| Potamogetonaceae | Potamogeton crispus | , curly pondweed | BARNES, MCLEAN, MERCER, SHERIDAN, SIOUX. Introduced. | 5, 6, 11, 15, 16, 29, 33, 39, 40, 48 | Map |
| Potamogetonaceae | Potamogeton diversifolius | , waterthread pondweed | BILLINGS, EMMONS, SLOPE, STUTSMAN, WARD | 5, 15, 16, 29, 34, 35, 39, 43, 47 | Map |
| Potamogetonaceae | Potamogeton foliosus | , leafy pondweed | BARNES, CASS, DICKEY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 5, 7, 11, 15, 16, 18, 19, 25, 26, 27, 29, 30, 31, 39, 41, 43, 45, 47, 48 | Map |
| Potamogetonaceae | Potamogeton friesii | , Fries' pondweed | BENSON, BILLINGS, BOTTINEAU, CASS, GOLDEN VALLEY, MCHENRY, MERCER, RANSOM, RICHLAND, ROLETTE, SARGENT, WARD | 1, 4, 15, 16, 26, 29, 39, 41, 43, 47 | Map, Photo |
| Potamogetonaceae | Potamogeton gramineus | , variableleaf pondweed | BARNES, BENSON, BILLINGS, BURKE, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, PIERCE, RANSOM, ROLETTE, STARK, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 5, 6, 7, 9, 11, 13, 15, 16, 24, 25, 26, 27, 29, 31, 32, 39, 41, 43, 45, 47 | Map |
| Potamogetonaceae | Potamogeton illinoensis | , Illinois pondweed | BENSON, RICHLAND | 3, 7, 18, 29, 39, 45 | Map |
| Potamogetonaceae | Potamogeton natans | , floating pondweed | BOTTINEAU, BURKE, MORTON, ROLETTE, SIOUX, STUTSMAN, WILLIAMS | 1, 3, 4, 5, 7, 15, 16, 18, 27, 28, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Potamogetonaceae | Potamogeton nodosus | , longleaf pondweed | BILLINGS, DIVIDE, GRAND FORKS, MERCER, MORTON, RANSOM, RICHLAND, SARGENT, SLOPE, WALSH | 1, 3, 5, 6, 15, 16, 25, 26, 27, 29, 39, 41, 43, 47 | Map |
| Potamogetonaceae | Potamogeton perfoliatus | , claspingleaf pondweed | BENSON, BOTTINEAU, RICHLAND, STEELE, WARD | 3, 17, 18, 27, 45 | Map |
| Potamogetonaceae | Potamogeton praelongus | , whitestem pondweed | BOTTINEAU, STUTSMAN, WARD | 1, 5, 6, 15, 16, 29, 33, 34, 35, 39, 41, 43 | Map |
| Potamogetonaceae | Potamogeton pusillus | , small pondweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 5, 6, 7, 8, 11, 15, 16, 16, 17, 19, 21, 24, 26, 27, 29, 31, 39, 39, 41, 43, 45, 47 | Map |
| Potamogetonaceae | Potamogeton richardsonii | , Richardson's pondweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 19, 24, 25, 26, 28, 29, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Potamogetonaceae | Potamogeton spirillus | , spiral pondweed | BARNES, EMMONS, KIDDER, LOGAN, MCINTOSH, STUTSMAN | 6, 11, 29, 31, 33, 41, 43 | Map |
| Potamogetonaceae | Potamogeton strictifolius | , narrowleaf pondweed | BOTTINEAU, MCHENRY | 1, 15, 16, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Potamogetonaceae | Potamogeton zosteriformis | , flatstem pondweed | BARNES, BOTTINEAU, CASS, EDDY, GOLDEN VALLEY, GRAND FORKS, GRIGGS, MCKENZIE, MERCER, MORTON, NELSON, OLIVER, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, TOWNER, WARD, WILLIAMS | 1, 3, 5, 6, 7, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 29, 32, 39, 41, 43, 45, 47, 48 | Map |
| Rosaceae | Potentilla argentea | , silver cinquefoil | BARNES, GRAND FORKS, MCHENRY, NELSON, PEMBINA, SIOUX, STARK, WARD. Introduced. | 1, 3, 4, 6, 7, 24, 27, 29, 39, 41, 43, 47 | Map, Photo |
| Rosaceae | Potentilla arguta | , tall cinquefoil | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Potentilla bipinnatifida | , tansy cinquefoil | BENSON, BILLINGS, BOTTINEAU, DUNN, GRAND FORKS, MCHENRY, STUTSMAN, WARD | 3, 5, 7, 17, 24, 24, 28, 29, 39, 41, 41, 43, 45, 45, 47, 47 | Map |
| Rosaceae | Potentilla concinna | , elegant cinquefoil | BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, MCHENRY, MCKENZIE, MERCER, MOUNTRAIL, ROLETTE, SHERIDAN, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 24, 27, 28, 29, 32, 39, 41, 43, 45, 47 | Map |
| Rosaceae | Potentilla diversifolia | , varileaf cinquefoil | BENSON, BILLINGS, MCHENRY, SLOPE, STARK | 4, 5, 24, 27, 29, 32, 33, 34, 35, 39, 41, 43 | Map, Photo |
| Rosaceae | Potentilla effusa | , branched cinquefoil | BURKE, MOUNTRAIL | 3, 5, 13, 18, 39, 47 | Map |
| Rosaceae | Potentilla gracilis | , slender cinquefoil | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CAVALIER, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, NELSON, OLIVER, RENVILLE, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 3, 4, 5, 5, 6, 7, 11, 13, 13, 17, 18, 18, 19, 24, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Rosaceae | Potentilla hippiana | , woolly cinquefoil | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, NELSON, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 17, 18, 24, 26, 27, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Rosaceae | Potentilla norvegica | , Norwegian cinquefoil | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Potentilla paradoxa | , Paradox cinquefoil | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 27, 28, 29, 31, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Rosaceae | Potentilla pensylvanica | , Pennsylvania cinquefoil | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Potentilla plattensis | , Platte River cinquefoil | BILLINGS, BURKE, DIVIDE, MOUNTRAIL, WILLIAMS | 4, 5, 13, 27, 29, 39, 41, 43, 47 | Map |
| Rosaceae | Potentilla pulcherrima | , beautiful cinquefoil | BENSON | 3, 7, 43, 45, 45, 47 | Map |
| Rosaceae | Potentilla recta | , sulphur cinquefoil | GRAND FORKS, MERCER. Introduced. | 29, 39, 42, 47 | Map |
| Rosaceae | Potentilla rivalis | , brook cinquefoil | BARNES, BENSON, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Prenanthes alba | , white rattlesnakeroot | BARNES, BOTTINEAU, CASS, CAVALIER, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, WALSH | 1, 3, 4, 5, 6, 7, 11, 14, 18, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 47 | Map, Photo, Photo |
| Compositae | Prenanthes racemosa | , purple rattlesnakeroot | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, EDDY, GRAND FORKS, GRIGGS, LAMOURE, LOGAN, MCHENRY, MCLEAN, NELSON, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 17, 18, 19, 21, 25, 26, 27, 28, 29, 39, 41, 43, 45, 47 | Map |
| Primulaceae | Primula incana | , silvery primrose | BURKE, DIVIDE, MOUNTRAIL | 4, 5, 13, 16, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Pedaliaceae | Proboscidea louisianica | , ram's horn | BARNES | 5 | Map |
| Liliaceae | Prosartes trachycarpa | , roughfruit fairybells | BILLINGS, BOTTINEAU, BURKE, DUNN, EDDY, GOLDEN VALLEY, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, OLIVER, PEMBINA, ROLETTE, SHERIDAN, SLOPE, STARK, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 13, 17, 18, 19, 24, 27, 28, 29, 30, 32, 39, 41, 42, 43, 43, 45, 45, 47 | Map, Photo, Photo |
| Labiatae | Prunella vulgaris | , common selfheal | BARNES, BENSON, CASS, EDDY, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, PEMBINA, RANSOM, STEELE, STUTSMAN, TRAILL | 1, 3, 5, 6, 7, 8, 11, 13, 15, 16, 18, 19, 25, 26, 27, 29, 31, 39, 43, 45 | Map |
| Rosaceae | Prunus americana | , American plum | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Prunus nigra | , Canadian plum | GRAND FORKS, MCHENRY | 6, 7, 18, 47 | Map |
| Rosaceae | Prunus pensylvanica | , pin cherry | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DUNN, GRAND FORKS, LAMOURE, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, ROLETTE, SLOPE, STARK, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 7, 11, 13, 14, 18, 24, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Rosaceae | Prunus pumila | , sandcherry | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STUTSMAN, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 11, 13, 18, 24, 25, 26, 27, 28, 29, 31, 32, 32, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Rosaceae | Prunus serotina | , black cherry | CASS, MERCER, NELSON | 1, 29, 39, 41, 43, 45 | Map |
| Rosaceae | Prunus tenella | , dwarf Russian almond | ADAMS. Introduced. | 4, 20 | Map |
| Rosaceae | Prunus tomentosa | , Nanking cherry | GRAND FORKS. Introduced. | 7 | Map |
| Rosaceae | Prunus virginiana | , chokecherry | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Psathyrostachys juncea | , Russian wildrye | BURKE, DIVIDE, GRAND FORKS, MERCER, RENVILLE, SARGENT, WILLIAMS. Introduced. | 4, 5, 5, 6, 7, 13, 27, 29, 39, 43 | Map, Photo |
| Plantaginaceae | Pseudolysimachion longifolium | , longleaf speedwell | MCHENRY, WELLS. Introduced. | 5, 27, 29, 39, 41 | Map |
| Gramineae | Pseudoroegneria spicata | , bluebunch wheatgrass | BENSON, BILLINGS, GOLDEN VALLEY, MOUNTRAIL, SLOPE, WARD, WILLIAMS | 1, 3, 4, 5, 5, 7, 13, 17, 18, 27, 29, 32, 39, 41, 43, 45, 45 | Map |
| Leguminosae | Psoralidium lanceolatum | , lemon scurfpea | BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, SIOUX, SLOPE, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 18, 24, 27, 29, 31, 32, 39, 41, 43, 45 | Map |
| Leguminosae | Psoralidium tenuiflorum | , slimflower scurfpea | BOWMAN | 1, 3, 4, 5, 27, 29, 34, 35, 39, 41, 43 | Map |
| Polypodiaceae | Pteridium aquilinum | , western brackenfern | GRAND FORKS, PEMBINA | 1, 5, 6, 7, 22, 23, 27, 29, 30, 33, 34, 39, 41, 43, 45, 47 | Map |
| Gramineae | Puccinellia distans | , weeping alkaligrass | CASS, CAVALIER, GOLDEN VALLEY, GRAND FORKS, PEMBINA, RAMSEY, SHERIDAN, WALSH, WILLIAMS. Introduced. | 5, 7, 10, 15, 16, 29, 39 | Map |
| Gramineae | Puccinellia nuttalliana | , Nuttall's alkaligrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 1, 2, 4, 5, 6, 7, 7, 8, 8, 9, 10, 11, 12, 13, 13, 15, 15, 16, 16, 17, 19, 19, 21, 24, 24, 25, 26, 27, 28, 29, 30, 31, 31, 32, 32, 39, 41, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Ranunculaceae | Pulsatilla patens | , eastern pasqueflower | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo |
| Labiatae | Pycnanthemum virginianum | , Virginia mountainmint | GRAND FORKS, RANSOM, RICHLAND, SARGENT, STARK | 1, 3, 5, 5, 6, 7, 7, 25, 26, 27, 29, 33, 35, 39, 41, 43, 45 | Map |
| Ericaceae | Pyrola asarifolia | , liverleaf wintergreen | BENSON, BOTTINEAU, DUNN, GRAND FORKS, MCHENRY, PEMBINA, RANSOM, RICHLAND, ROLETTE | 1, 4, 5, 6, 7, 18, 24, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo |
| Ericaceae | Pyrola elliptica | , waxflower shinleaf | BOTTINEAU, DUNN, EDDY, PEMBINA, RICHLAND, ROLETTE | 1, 3, 5, 6, 7, 19, 24, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 47 | Map |
| Compositae | Pyrrocoma lanceolata | , lanceleaf goldenweed | BURKE, DIVIDE, MOUNTRAIL, WARD, WILLIAMS | 1, 3, 4, 5, 6, 13, 18, 27, 29, 39, 41, 43, 45, 47 | Map, Photo |
| Fagaceae | Quercus ellipsoidalis | , northern pin oak | RICHLAND | 29, 34, 39, 41, 43 | Map |
| Fagaceae | Quercus macrocarpa | , bur oak | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Ranunculus abortivus | , littleleaf buttercup | BARNES, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, GOLDEN VALLEY, GRAND FORKS, GRIGGS, LAMOURE, MCHENRY, MCLEAN, MERCER, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Ranunculaceae | Ranunculus acris | , tall buttercup | BILLINGS, CASS, MCLEAN, RICHLAND. Introduced. | 1, 3, 18, 25, 26, 27, 29, 34, 39, 40, 41, 43, 47 | Map |
| Ranunculaceae | Ranunculus aquatilis | , white water crowfoot | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 26, 27, 28, 29, 31, 32, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Ranunculus cardiophyllus | , heartleaf buttercup | MCKENZIE, WILLIAMS | 5, 16, 24, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Ranunculaceae | Ranunculus cymbalaria | , alkali buttercup | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Ranunculus flabellaris | , yellow water buttercup | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DICKEY, DIVIDE, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STUTSMAN, WALSH, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 11, 13, 15, 16, 18, 19, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Ranunculaceae | Ranunculus flammula | , greater creeping spearwort | BURKE, WILLIAMS | 5, 16, 29, 34, 35, 39, 41, 42, 43, 45, 47 | Map |
| Ranunculaceae | Ranunculus glaberrimus | , sagebrush buttercup | BILLINGS, BOWMAN, BURKE, CAVALIER, DICKEY, EMMONS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, STARK, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 7, 13, 24, 27, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Ranunculaceae | Ranunculus gmelinii | , Gmelin's buttercup | BARNES, BENSON, BOTTINEAU, BURKE, CAVALIER, DIVIDE, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 18, 19, 25, 26, 27, 28, 29, 31, 39, 41, 42, 43, 45, 45, 47 | Map, Photo, Photo |
| Ranunculaceae | Ranunculus hispidus | , bristly buttercup | BARNES, BENSON, BOTTINEAU, BURKE, DICKEY, DUNN, EDDY, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN, WARD | 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 15, 16, 17, 18, 19, 25, 26, 26, 27, 28, 29, 31, 39, 41, 42, 43, 45, 45, 47 | Map, Photo |
| Ranunculaceae | Ranunculus macounii | , Macoun's buttercup | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Ranunculaceae | Ranunculus pensylvanicus | , Pennsylvania buttercup | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, NELSON, OLIVER, PEMBINA, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Ranunculus recurvatus | , blisterwort | GRAND FORKS, RICHLAND | 1, 5, 7, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Ranunculaceae | Ranunculus rhomboideus | , Labrador buttercup | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SLOPE, STEELE, STUTSMAN, WALSH, WARD | 1, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Ranunculaceae | Ranunculus sceleratus | , cursed buttercup | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Ranunculus trichophyllus | , threadleaf crowfoot | EMMONS, MCINTOSH | 29, 39, 43 | Map |
| Cruciferae | Raphanus raphanistrum | , wild radish | BARNES, GRAND FORKS, NELSON. Introduced. | 3, 7, 9, 27, 29, 39, 47 | Map |
| Cruciferae | Raphanus sativus | , cultivated radish | BARNES, BENSON, GRAND FORKS, MORTON, PEMBINA, RICHLAND, WALSH. Introduced. | 1, 3, 7, 18, 25, 26, 27, 29, 39, 40, 43, 47 | Map |
| Compositae | Ratibida columnifera | , upright prairie coneflower | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Ratibida pinnata | , pinnate prairie coneflower | BENSON | 7 | Map |
| Gramineae | Redfieldia flexuosa | , blowout grass | BOTTINEAU, KIDDER, MCHENRY, RANSOM, RICHLAND, SARGENT, SIOUX | 1, 3, 5, 6, 7, 25, 26, 27, 28, 29, 39, 41, 43, 45 | Map |
| Resedaceae | Reseda odorata | , garden mignonette | BURLEIGH. Introduced. | 5, 18 | Map |
| Rhamnaceae | Rhamnus alnifolia | , alderleaf buckthorn | BENSON, BOTTINEAU, CAVALIER, GRAND FORKS, MCHENRY, PEMBINA, RANSOM, RICHLAND, ROLETTE | 1, 3, 5, 7, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45, 47 | Map |
| Rhamnaceae | Rhamnus cathartica | , common buckthorn | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, DUNN, EDDY, FOSTER, GRAND FORKS, GRIGGS, HETTINGER, MCLEAN, MERCER, MORTON, MOUNTRAIL, PIERCE, RANSOM, RICHLAND, SARGENT, SHERIDAN, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 4, 5, 6, 6, 7, 8, 11, 13, 17, 19, 25, 26, 27, 28, 29, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rhamnaceae | Rhamnus davurica | , Dahurian buckthorn | BURLEIGH, CASS, GRAND FORKS, HETTINGER, OLIVER, RANSOM, RICHLAND. Introduced. | 5, 25, 26, 29, 39, 43, 47 | Map |
| Polygonaceae | Rheum rhabarbarum | , garden rhubarb | BILLINGS, GOLDEN VALLEY. Introduced. | 18, 32, 39 | Map |
| Orobanchaceae | Rhinanthus minor | , little yellow rattle | MCHENRY | 4, 29, 39 | Map, Photo |
| Anacardiaceae | Rhus aromatica | , fragrant sumac | ADAMS, BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, SIOUX, SLOPE, STARK, WILLIAMS | 1, 4, 6, 7, 12, 18, 24, 31, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Anacardiaceae | Rhus glabra | , smooth sumac | BARNES, BENSON, CASS, CAVALIER, GRAND FORKS, MCHENRY, MORTON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, WALSH, WARD | 1, 3, 4, 6, 7, 11, 14, 17, 21, 25, 26, 27, 29, 30, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo |
| Anacardiaceae | Rhus trilobata | , skunkbush sumac | BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, FOSTER, GOLDEN VALLEY, GRANT, LAMOURE, LOGAN, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 3, 4, 7, 13, 27, 29, 32, 43, 45 | Map, Photo, Photo |
| Cyperaceae | Rhynchospora capillacea | , needle beaksedge | BENSON, BOTTINEAU, EDDY, MCHENRY, STUTSMAN, WELLS | 3, 4, 5, 7, 16, 18, 29, 34, 35, 39, 43, 47 | Map, Photo |
| Saxifragaceae | Ribes americanum | , American black currant | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 14, 16, 17, 17, 18, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Saxifragaceae | Ribes aureum | , golden currant | BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, SIOUX, SLOPE, STARK, TOWNER, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 13, 24, 27, 29, 31, 32, 39, 41, 42, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Saxifragaceae | Ribes cereum | , wax currant | BILLINGS, BOWMAN, SLOPE | 1, 5, 29, 32, 33, 35, 39, 41, 43, 47 | Map |
| Saxifragaceae | Ribes cynosbati | , eastern prickly gooseberry | BARNES, CASS, GRAND FORKS, RANSOM, RICHLAND | 1, 5, 7, 7, 25, 26, 27, 29, 34, 35, 39, 41, 43, 47 | Map |
| Saxifragaceae | Ribes hirtellum | , hairystem gooseberry | BOTTINEAU, CAVALIER, EDDY, GRAND FORKS, GRIGGS, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, TRAILL, WALSH, WILLIAMS | 1, 4, 5, 7, 13, 14, 19, 25, 26, 28, 29, 30, 39, 41, 43, 47 | Map, Photo, Photo |
| Saxifragaceae | Ribes missouriense | , Missouri gooseberry | BARNES, BENSON, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, MCLEAN, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SHERIDAN, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 11, 14, 16, 19, 24, 25, 26, 27, 29, 30, 31, 39, 41, 42, 43, 47 | Map, Photo, Photo, Photo, Photo |
| Saxifragaceae | Ribes oxyacanthoides | , Canadian gooseberry | BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, WARD, WELLS, WILLIAMS | 1, 1, 3, 5, 7, 7, 8, 13, 17, 18, 19, 21, 24, 24, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 45, 45, 47 | Map |
| Saxifragaceae | Ribes triste | , red currant | BENSON, BOTTINEAU, CAVALIER, GRIGGS, PEMBINA, ROLETTE | 1, 3, 6, 16, 18, 27, 28, 29, 30, 39, 41, 42, 43, 47 | Map |
| Cruciferae | Rorippa austriaca | , Austrian yellowcress | BARNES, BENSON, CASS, DICKEY, LAMOURE, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH. Introduced. | 2, 5, 6, 11, 15, 16, 21, 26, 27, 29, 30, 39, 40, 43, 45, 47 | Map |
| Cruciferae | Rorippa calycina | , persistent sepal yellowcress | MCKENZIE | 15, 16, 29, 34, 35, 39, 41, 43, 47 | Map |
| Cruciferae | Rorippa curvipes | , bluntleaf yellowcress | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, DICKEY, DIVIDE, DUNN, GRIGGS, KIDDER, LAMOURE, MCHENRY, MOUNTRAIL, PEMBINA, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 15, 15, 16, 16, 19, 24, 27, 28, 29, 39, 41, 43, 47 | Map |
| Cruciferae | Rorippa palustris | , bog yellowcress | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Rorippa sinuata | , spreading yellowcress | ADAMS, BILLINGS, BOWMAN, BURLEIGH, DICKEY, DUNN, EMMONS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, SIOUX, SLOPE, STARK, WILLIAMS | 1, 2, 3, 4, 5, 13, 15, 16, 18, 24, 27, 29, 31, 32, 39, 41, 47 | Map |
| Cruciferae | Rorippa sylvestris | , creeping yellowcress | CASS, WARD. Introduced. | 4, 15, 16, 17, 27, 29, 39, 40, 43, 47 | Map |
| Cruciferae | Rorippa tenerrima | , Modoc yellowcress | MCLEAN, MERCER, OLIVER | 15, 16, 29, 39, 41, 43, 47 | Map |
| Rosaceae | Rosa acicularis | , prickly rose | BOTTINEAU, CAVALIER, EDDY, FOSTER, GRAND FORKS, PEMBINA, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STARK, WARD, WELLS | 1, 3, 4, 7, 8, 18, 19, 26, 27, 28, 29, 39, 41, 42, 43, 45, 45, 47 | Map, Photo, Photo |
| Rosaceae | Rosa arkansana | , prairie rose | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Rosa blanda | , smooth rose | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STUTSMAN, WALSH, WARD | 1, 2, 3, 4, 5, 7, 8, 10, 11, 14, 17, 19, 24, 25, 26, 27, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Rosaceae | Rosa woodsii | , Woods' rose | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Rosaceae | Rosa ×dulcissima | , hybrid rose | BENSON, BOTTINEAU, RICHLAND | 25, 28, 29, 39, 43, 45 | Map |
| Rosaceae | Rubus idaeus | , American red raspberry | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Rosaceae | Rubus occidentalis | , black raspberry | EMMONS, KIDDER, LOGAN, MCINTOSH, MORTON, OLIVER, RANSOM, RICHLAND, SARGENT, WARD | 1, 5, 7, 17, 25, 26, 27, 29, 31, 39, 41, 43, 47 | Map |
| Rosaceae | Rubus pubescens | , dwarf red blackberry | BENSON, BOTTINEAU, CASS, GRAND FORKS, GRIGGS, MCHENRY, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN | 1, 4, 5, 6, 7, 7, 14, 21, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo |
| Compositae | Rudbeckia hirta | , blackeyed Susan | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MORTON, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 43, 44, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Rudbeckia laciniata | , cutleaf coneflower | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, TRAILL, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 11, 14, 18, 19, 21, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 43, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Rumex acetosella | , common sheep sorrel | BILLINGS, BOTTINEAU, CASS, MCHENRY, PEMBINA, RICHLAND, STARK, STUTSMAN. Introduced. | 1, 3, 5, 6, 11, 18, 24, 25, 26, 27, 28, 29, 32, 39, 40, 43, 47 | Map |
| Polygonaceae | Rumex altissimus | , pale dock | BENSON, DIVIDE, KIDDER, MERCER, NELSON, RANSOM, SIOUX, STUTSMAN, TRAILL, WARD, WILLIAMS | 4, 5, 6, 7, 39, 43, 47, 48 | Map, Photo, Photo, Photo, Photo |
| Polygonaceae | Rumex aquaticus | , western dock | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 45, 47 | Map |
| Polygonaceae | Rumex confertus | , Asiatic dock | BILLINGS | 5, 39, 47 | Map |
| Polygonaceae | Rumex crispus | , curly dock | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47 | Map, Photo |
| Polygonaceae | Rumex longifolius | , dooryard dock | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 5, 6, 11, 13, 15, 16, 17, 19, 21, 24, 25, 26, 28, 29, 29, 30, 31, 32, 39, 39, 43, 43, 47, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Rumex maritimus | , golden dock | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Rumex obtusifolius | , bitter dock | DIVIDE. Introduced. | 6, 7 | Map |
| Polygonaceae | Rumex orbiculatus | , greater water dock | BOTTINEAU, CASS, DICKEY, HETTINGER, KIDDER, LAMOURE, MCLEAN, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 2, 4, 6, 7, 15, 16, 25, 26, 27, 29, 30, 41, 43 | Map, Photo |
| Polygonaceae | Rumex patientia | , patience dock | BURLEIGH, EDDY, FOSTER, GOLDEN VALLEY, MCLEAN, PIERCE, STARK, WARD. Introduced. | 1, 5, 16, 17, 19, 24, 29, 39, 43, 47 | Map |
| Polygonaceae | Rumex salicifolius | , willow dock | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 10, 11, 12, 13, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Rumex stenophyllus | , narrowleaf dock | BENSON, BILLINGS, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, RENVILLE, RICHLAND, SIOUX, SLOPE, STARK, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 8, 13, 15, 16, 19, 24, 25, 26, 29, 31, 32, 39, 40, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Polygonaceae | Rumex venosus | , veiny dock | BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, MCKENZIE, MCLEAN, MERCER, OLIVER, SIOUX, SLOPE, STARK, STUTSMAN, WILLIAMS | 1, 3, 5, 6, 7, 11, 13, 18, 24, 27, 29, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Polygonaceae | Rumex verticillatus | , swamp dock | GRAND FORKS | 7 | Map |
| Ruppiaceae | Ruppia cirrhosa | , spiral ditchgrass | BURKE, KIDDER, LOGAN, MCINTOSH, SHERIDAN, STEELE, STUTSMAN, WILLIAMS | 4, 5, 29, 39, 41, 47 | Map, Photo |
| Ruppiaceae | Ruppia maritima | , widgeongrass | BENSON, BOTTINEAU, BURKE, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, WILLIAMS | 1, 2, 3, 5, 6, 7, 8, 11, 13, 15, 16, 18, 19, 26, 27, 31 | Map |
| Alismataceae | Sagittaria cuneata | , arumleaf arrowhead | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 11, 13, 14, 15, 16, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Alismataceae | Sagittaria latifolia | , broadleaf arrowhead | BARNES, CASS, CAVALIER, DICKEY, EDDY, FOSTER, GRAND FORKS, LAMOURE, LOGAN, MCKENZIE, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 8, 11, 15, 16, 19, 26, 29, 30, 39, 41, 42, 43, 45, 47, 48 | Map, Photo, Photo |
| Amaranthaceae | Salicornia rubra | , red swampfire | ADAMS, BARNES, BENSON, BOTTINEAU, CAVALIER, DICKEY, DIVIDE, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SHERIDAN, STUTSMAN, TOWNER, TRAILL, WALSH, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 10, 11, 13, 15, 16, 18, 21, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Salicaceae | Salix alba | , white willow | BARNES, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MERCER, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, WALSH, WARD, WELLS. Introduced. | 1, 4, 5, 6, 7, 8, 10, 11, 15, 16, 17, 18, 19, 24, 26, 29, 31, 39, 40, 41, 43 | Map |
| Salicaceae | Salix amygdaloides | , peachleaf willow | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Salicaceae | Salix bebbiana | , Bebb willow | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Salicaceae | Salix candida | , sageleaf willow | BARNES, BENSON, BURKE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 18, 19, 26, 27, 29, 30, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Salicaceae | Salix cordata | , heartleaf willow | BENSON, CASS, GRAND FORKS, WARD | 14, 17, 27, 43, 45 | Map |
| Salicaceae | Salix discolor | , pussy willow | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, ROLETTE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 47 | Map |
| Salicaceae | Salix drummondiana | , Drummond's willow | SIOUX | 48 | Map |
| Salicaceae | Salix eriocephala | , Missouri River willow | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 11, 13, 15, 16, 19, 21, 25, 26, 27, 29, 31, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Salicaceae | Salix exigua | , narrowleaf willow | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 6, 7, 8, 11, 12, 13, 15, 16, 19, 21, 24, 25, 26, 30, 31, 32, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Salicaceae | Salix fragilis | , crack willow | BENSON, BOTTINEAU, DICKEY, KIDDER, LAMOURE, MCLEAN, SARGENT, STUTSMAN, WALSH, WARD. Introduced. | 2, 4, 6, 15, 16, 29, 31, 39, 40, 45 | Map |
| Salicaceae | Salix humilis | , prairie willow | BARNES, BENSON, BOTTINEAU, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, RANSOM, RICHLAND, ROLETTE, SIOUX | 1, 3, 4, 6, 11, 14, 15, 16, 18, 25, 25, 26, 27, 27, 28, 28, 29, 31, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Salicaceae | Salix interior | , sandbar willow | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 3, 4, 5, 7, 7, 9, 14, 18, 27, 28, 29, 39, 42, 43, 45, 47 | Map, Photo |
| Salicaceae | Salix lucida | , shining willow | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DIVIDE, GOLDEN VALLEY, GRAND FORKS, KIDDER, MCHENRY, MCKENZIE, MCLEAN, MOUNTRAIL, OLIVER, PEMBINA, RENVILLE, ROLETTE, STUTSMAN, WARD, WILLIAMS | 1, 4, 6, 7, 10, 11, 13, 15, 16, 18, 27, 28, 29, 31, 39, 41, 43, 45, 47 | Map, Photo |
| Salicaceae | Salix lutea | , yellow willow | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 4, 5, 7, 8, 10, 13, 16, 17, 17, 19, 24, 26, 27, 28, 29, 30, 39, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Salicaceae | Salix maccalliana | , McCalla's willow | BOTTINEAU | 15, 29, 34, 35, 39, 41, 47 | Map |
| Salicaceae | Salix pedicellaris | , bog willow | BENSON, BOTTINEAU, MCHENRY, RANSOM, RICHLAND, ROLETTE, SARGENT | 4, 5, 6, 7, 15, 16, 26, 29, 33, 34, 35, 39, 41, 43, 47 | Map, Photo, Photo |
| Salicaceae | Salix pentandra | , laurel willow | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MOUNTRAIL, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 19, 24, 26, 27, 29, 31, 39, 40, 43 | Map |
| Salicaceae | Salix petiolaris | , meadow willow | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, MCHENRY, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SLOPE, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Salicaceae | Salix scouleriana | , Scouler's willow | ROLETTE | 4, 41 | Map, Photo |
| Salicaceae | Salix serissima | , autumn willow | BARNES, BOTTINEAU, GRANT, KIDDER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SHERIDAN, STARK, STUTSMAN | 1, 3, 4, 6, 15, 16, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 47 | Map, Photo |
| Amaranthaceae | Salsola collina | , slender Russian thistle | BARNES, BILLINGS, BOTTINEAU, BURLEIGH, CASS, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, NELSON, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, STARK, STUTSMAN, TRAILL, WALSH. Introduced. | 1, 4, 5, 11, 21, 24, 25, 26, 28, 29, 31, 39, 40, 43, 47 | Map, Photo |
| Amaranthaceae | Salsola kali | , Russian thistle | BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, DIVIDE, EDDY, GOLDEN VALLEY, GRANT, MCLEAN, MOUNTRAIL, NELSON, RANSOM, RICHLAND, SARGENT, SLOPE, STUTSMAN, WARD, WILLIAMS. Introduced. | 3, 4, 5, 9, 13, 17, 25, 27, 28, 32, 42, 45 | Map, Photo |
| Amaranthaceae | Salsola tragus | , prickly Russian thistle | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 8, 11, 12, 18, 19, 21, 24, 26, 29, 31, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo |
| Labiatae | Salvia reflexa | , lanceleaf sage | BARNES, BILLINGS, CASS, DICKEY, DIVIDE, DUNN, EDDY, FOSTER, GOLDEN VALLEY, GRANT, LAMOURE, MCKENZIE, MCLEAN, MORTON, RANSOM, RICHLAND, SARGENT, SLOPE, STARK, STUTSMAN, WILLIAMS | 1, 2, 5, 5, 8, 11, 13, 19, 24, 25, 26, 27, 29, 32, 39, 41, 45 | Map |
| Labiatae | Salvia ×sylvestris | , woodland sage | CASS, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MCKENZIE, SLOPE. Introduced. | 5, 7, 24, 27, 29, 31, 32, 39 | Map |
| Adoxaceae | Sambucus nigra | , black elderberry | BARNES, BURLEIGH, CASS, EDDY, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, PEMBINA, RICHLAND, SIOUX, STUTSMAN, WALSH, WARD. Introduced. | 1, 4, 5, 7, 8, 11, 17, 19, 25, 26, 29, 30, 31, 39, 41, 43, 48 | Map |
| Adoxaceae | Sambucus racemosa | , red elderberry | CASS, RANSOM, RICHLAND, SARGENT, TRAILL, WALSH | 1, 4, 5, 5, 25, 26, 29, 39, 41, 43 | Map, Photo |
| Papaveraceae | Sanguinaria canadensis | , bloodroot | CASS, GRAND FORKS, RANSOM, RICHLAND, ROLETTE, SARGENT | 1, 3, 4, 6, 7, 7, 14, 25, 26, 27, 29, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Umbelliferae | Sanicula marilandica | , Maryland sanicle | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Umbelliferae | Sanicula odorata | , clustered blacksnakeroot | RICHLAND | 5, 25, 26, 29, 35, 39, 41 | Map |
| Caryophyllaceae | Saponaria officinalis | , bouncingbet | BARNES, BENSON, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 11, 13, 17, 18, 25, 26, 27, 29, 31, 39, 40, 42, 43, 45, 47 | Map, Photo |
| Phytolaccaceae | Sarcobatus vermiculatus | , greasewood | BILLINGS, DIVIDE, DUNN, GOLDEN VALLEY, GRANT, MCKENZIE, SLOPE, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 24, 27, 29, 32, 39, 41, 43, 47 | Map, Photo, Photo, Photo |
| Gramineae | Schedonnardus paniculatus | , tumblegrass | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, RAMSEY, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 17, 18, 19, 21, 24, 27, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map, Photo |
| Gramineae | Schedonorus arundinaceus | , tall fescue | ADAMS. Introduced. | 4 | Map |
| Gramineae | Schedonorus pratensis | , meadow fescue | BARNES, BOTTINEAU, CASS, EDDY, GRAND FORKS, PEMBINA, RICHLAND, WALSH, WILLIAMS. Introduced. | 1, 4, 5, 8, 13, 19, 25, 26, 27, 28, 29, 39, 40, 43 | Map |
| Scheuchzeriaceae | Scheuchzeria palustris | , rannoch-rush | BOTTINEAU | 4, 7, 16, 29, 34, 35, 39, 41, 43, 47 | Map, Photo |
| Gramineae | Schizachne purpurascens | , false melic | BARNES, BENSON, BOTTINEAU, DUNN, GRAND FORKS, GRIGGS, MCHENRY, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, WALSH, WARD, WILLIAMS | 1, 5, 7, 11, 13, 14, 21, 24, 25, 26, 27, 28, 29, 30, 39, 41, 42, 44, 45 | Map |
| Gramineae | Schizachyrium scoparium | , little bluestem | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Schoenoplectus acutus | , hardstem bulrush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Schoenoplectus fluviatilis | , river bulrush | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo |
| Cyperaceae | Schoenoplectus heterochaetus | , slender bulrush | BARNES, BOTTINEAU, BOWMAN, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, HETTINGER, KIDDER, LAMOURE, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 15, 16, 19, 21, 24, 25, 26, 27, 29, 31, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo |
| Cyperaceae | Schoenoplectus maritimus | , cosmopolitan bulrush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Schoenoplectus pungens | , common threesquare | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Schoenoplectus tabernaemontani | , softstem bulrush | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47, 48 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cyperaceae | Scirpus atrovirens | , green bulrush | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 15, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo |
| Cyperaceae | Scirpus cyperinus | , woolgrass | GRAND FORKS, PEMBINA | 5, 20, 39 | Map |
| Cyperaceae | Scirpus microcarpus | , panicled bulrush | BARNES, BENSON, BILLINGS, BOTTINEAU, CAVALIER, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, TRAILL, WALSH | 1, 3, 4, 5, 6, 7, 7, 8, 11, 14, 15, 16, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Cyperaceae | Scirpus nevadensis | , Nevada bulrush | BENSON, BOTTINEAU, BURKE, EMMONS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, OLIVER, PIERCE, SHERIDAN, WARD, WILLIAMS | 1, 4, 5, 6, 13, 15, 16, 17, 27, 28, 29, 31, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo |
| Cyperaceae | Scirpus pallidus | , cloaked bulrush | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, MCHENRY, MCINTOSH, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD | 2, 4, 5, 7, 8, 16, 19, 26, 29, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Scolochloa festucacea | , common rivergrass | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map |
| Scrophulariaceae | Scrophularia lanceolata | , lanceleaf figwort | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCINTOSH, MCLEAN, MORTON, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, STUTSMAN, TRAILL, WALSH, WARD | 1, 4, 5, 6, 7, 7, 11, 14, 17, 18, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43 | Map, Photo |
| Labiatae | Scutellaria galericulata | , marsh skullcap | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Scutellaria lateriflora | , blue skullcap | BARNES, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH, WARD | 1, 2, 4, 5, 6, 7, 8, 11, 15, 16, 17, 18, 19, 24, 25, 26, 27, 29, 30, 31, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Scutellaria parvula | , small skullcap | CASS, GRAND FORKS, RANSOM, RICHLAND, SARGENT, WALSH | 1, 3, 5, 7, 7, 10, 14, 18, 25, 26, 27, 29, 39, 41, 43 | Map |
| Leguminosae | Securigera varia | , crownvetch | BOTTINEAU, FOSTER, GRAND FORKS. Introduced. | 7, 42 | Map |
| Selaginellaceae | Selaginella densa | , lesser spikemoss | ADAMS, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DIVIDE, DUNN, EDDY, GOLDEN VALLEY, GRANT, HETTINGER, MCHENRY, MCKENZIE, MORTON, MOUNTRAIL, PEMBINA, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 4, 5, 5, 6, 7, 13, 17, 18, 19, 22, 23, 24, 27, 28, 29, 30, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Selaginellaceae | Selaginella rupestris | , northern selaginella | MCHENRY, PEMBINA | 1, 3, 4, 5, 23, 29, 33, 34, 35, 39, 41, 43, 45 | Map, Photo |
| Compositae | Senecio congestus | , marsh fleabane | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, TOWNER, WARD, WELLS | 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Senecio eremophilus | , desert ragwort | BOTTINEAU, ROLETTE | 3, 5, 5, 18, 27, 28, 29, 34, 35, 39, 41, 43, 47 | Map |
| Compositae | Senecio integerrimus | , lambstongue ragwort | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Senecio vulgaris | , old-man-in-the-Spring | CASS, GRIGGS, STARK. Introduced. | 4, 5, 24, 29, 39, 40, 43, 47 | Map, Photo |
| Gramineae | Setaria italica | , foxtail millet | BARNES, BOTTINEAU, CASS, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, RANSOM, RICHLAND, SARGENT, SIOUX, WARD. Introduced. | 1, 3, 4, 5, 6, 7, 8, 10, 11, 17, 18, 19, 25, 26, 27, 29, 31, 32, 39, 40 | Map |
| Gramineae | Setaria pumila | , yellow foxtail | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 5, 7, 8, 11, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Setaria verticillata | , hooked bristlegrass | BARNES, BURLEIGH, CASS, DICKEY, GRAND FORKS, LAMOURE, RANSOM, RICHLAND, SARGENT, WALSH, WARD. Introduced. | 1, 2, 5, 11, 17, 25, 26, 27, 29, 39, 40, 41, 43, 45 | Map |
| Gramineae | Setaria viridis | , green bristlegrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Elaeagnaceae | Shepherdia argentea | , silver buffaloberry | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CAVALIER, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 3, 4, 5, 5, 6, 7, 7, 8, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Elaeagnaceae | Shepherdia canadensis | , russet buffaloberry | BARNES, BOTTINEAU, CAVALIER, DUNN, MCKENZIE, PEMBINA, ROLETTE, WARD | 1, 3, 4, 5, 6, 7, 17, 18, 24, 27, 28, 29, 30, 39, 41, 43, 45 | Map, Photo, Photo |
| Compositae | Shinnersoseris rostrata | , beaked skeletonweed | BENSON, BOTTINEAU, MCHENRY, MERCER, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 6, 7, 7, 18, 25, 26, 27, 28, 29, 39, 41, 43, 43, 47 | Map |
| Rosaceae | Sibbaldiopsis tridentata | , shrubby fivefingers | BILLINGS, CAVALIER, PEMBINA | 5, 5, 7, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Cucurbitaceae | Sicyos angulatus | , oneseed bur cucumber | RANSOM, RICHLAND, SARGENT | 1, 5, 25, 26, 27, 29, 33, 39, 41, 43, 47 | Map |
| Caryophyllaceae | Silene antirrhina | , sleepy silene | BARNES, BILLINGS, BOTTINEAU, CASS, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MORTON, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, WELLS | 1, 3, 4, 5, 6, 8, 11, 13, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 45, 47 | Map |
| Caryophyllaceae | Silene csereii | , Balkan catchfly | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, RAMSEY, RANSOM, RICHLAND, SHERIDAN, STARK, STUTSMAN, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 8, 11, 13, 17, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Caryophyllaceae | Silene dichotoma | , forked catchfly | BARNES, CASS, CAVALIER, DICKEY, HETTINGER, LAMOURE, SHERIDAN, STARK, WARD. Introduced. | 2, 5, 7, 27, 29, 39, 43 | Map |
| Caryophyllaceae | Silene drummondii | , Drummond's campion | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 7, 11, 13, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45, 47 | Map |
| Caryophyllaceae | Silene latifolia | , bladder campion | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MORTON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, STUTSMAN, WARD, WELLS. Introduced. | 1, 2, 4, 5, 6, 7, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 40, 42, 43, 44, 47 | Map, Photo, Photo |
| Caryophyllaceae | Silene menziesii | , Menzies' campion | ADAMS | 20 | Map |
| Caryophyllaceae | Silene noctiflora | , nightflowering silene | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WILLIAMS. Introduced. | 1, 3, 4, 5, 6, 7, 8, 9, 11, 13, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 40, 42, 43, 45, 47 | Map, Photo, Photo, Photo |
| Caryophyllaceae | Silene vulgaris | , maidenstears | CASS, DICKEY, LOGAN, MOUNTRAIL, STUTSMAN, WARD. Introduced. | 4, 29, 39, 40, 41, 43, 47 | Map |
| Compositae | Silphium perfoliatum | , cup plant | CASS, GRAND FORKS, GRANT, RANSOM, RICHLAND, SARGENT | 1, 3, 15, 16, 18, 25, 26, 27, 29, 39, 41, 42, 43, 45, 47 | Map |
| Cruciferae | Sinapis arvensis | , charlock mustard | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Sisymbrium altissimum | , tall tumblemustard | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Cruciferae | Sisymbrium irio | , London rocket | MCHENRY. Introduced. | 7 | Map |
| Cruciferae | Sisymbrium loeselii | , small tumbleweed mustard | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, CAVALIER, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MORTON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 1, 4, 5, 6, 7, 8, 11, 13, 14, 19, 21, 25, 26, 27, 28, 29, 30, 31, 32, 39, 42, 43, 44, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Cruciferae | Sisymbrium officinale | , hedgemustard | BARNES, BENSON, BOTTINEAU, BURKE, CASS, DICKEY, GRAND FORKS, LAMOURE, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN. Introduced. | 1, 2, 3, 4, 5, 7, 11, 14, 18, 25, 26, 27, 29, 30, 39, 40, 43, 45 | Map |
| Iridaceae | Sisyrinchium campestre | , prairie blue-eyed grass | BENSON, DUNN, GRAND FORKS, RANSOM, RICHLAND, SARGENT | 3, 7, 15, 18, 45, 47 | Map |
| Iridaceae | Sisyrinchium montanum | , strict blue-eyed grass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 1, 2, 3, 4, 5, 6, 7, 7, 8, 8, 9, 11, 13, 14, 15, 16, 17, 17, 18, 19, 19, 20, 21, 24, 25, 26, 27, 28, 29, 30, 30, 31, 32, 39, 41, 42, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Iridaceae | Sisyrinchium mucronatum | , needletip blue-eyed grass | BENSON, CAVALIER, GRAND FORKS, GRANT, MCHENRY, RANSOM, RICHLAND, SLOPE, WELLS | 1, 3, 7, 10, 18, 29, 39, 41, 47 | Map |
| Iridaceae | Sisyrinchium septentrionale | , northern blue-eyed grass | BENSON | 3, 18, 43, 45 | Map |
| Umbelliferae | Sium suave | , hemlock waterparsnip | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Smilacaceae | Smilax herbacea | , smooth carrionflower | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 19, 24, 25, 26, 27, 28, 30, 31, 32, 41, 42, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Smilacaceae | Smilax lasioneura | , Blue Ridge carrionflower | BENSON, BOTTINEAU, DUNN, GOLDEN VALLEY, MCHENRY, WARD | 1, 7, 17, 18, 18, 29, 29, 34, 39, 41, 43, 43, 45, 47 | Map |
| Solanaceae | Solanum dulcamara | , climbing nightshade | BARNES, CASS, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCINTOSH, MOUNTRAIL, STUTSMAN, TOWNER, WARD, WELLS. Introduced. | 1, 4, 5, 11, 13, 19, 29, 31, 39, 40, 43 | Map, Photo, Photo |
| Solanaceae | Solanum physalifolium | , hoe nightshade | BARNES, BURLEIGH, DUNN, EMMONS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MORTON, RAMSEY, RANSOM, RICHLAND, SARGENT, STARK, WILLIAMS. Introduced. | 1, 5, 7, 11, 13, 21, 24, 26, 29, 31, 39, 40, 41, 43, 45 | Map |
| Solanaceae | Solanum ptychanthum | , West Indian nightshade | BARNES, BENSON, BOTTINEAU, BOWMAN, CASS, DICKEY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MORTON, NELSON, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, STARK, STUTSMAN, TRAILL, WARD, WELLS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 11, 14, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 39, 41, 45 | Map, Photo, Photo, Photo |
| Solanaceae | Solanum rostratum | , buffalobur nightshade | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SIOUX, SLOPE, STARK, TRAILL, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 12, 13, 17, 18, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43 | Map, Photo, Photo, Photo, Photo |
| Solanaceae | Solanum triflorum | , cutleaf nightshade | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo |
| Compositae | Solidago canadensis | , Canada goldenrod | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 17, 18, 18, 19, 21, 24, 24, 25, 26, 27, 28, 29, 29, 30, 31, 32, 39, 39, 41, 42, 43, 43, 44, 45, 45, 47, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Solidago flexicaulis | , zigzag goldenrod | CASS, CAVALIER, GRAND FORKS, KIDDER, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 3, 5, 7, 14, 18, 25, 26, 27, 29, 34, 35, 39, 41, 43, 47 | Map |
| Compositae | Solidago gigantea | , giant goldenrod | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Compositae | Solidago missouriensis | , Missouri goldenrod | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Solidago mollis | , velvety goldenrod | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Solidago nemoralis | , gray goldenrod | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Solidago simplex | , Mt. Albert goldenrod | MCHENRY | 4, 39, 47 | Map, Photo |
| Compositae | Solidago speciosa | , showy goldenrod | STUTSMAN | 1, 29, 39, 41, 43, 47 | Map |
| Compositae | Sonchus arvensis | , field sowthistle | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 37, 39, 40, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Sonchus asper | , spiny sowthistle | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, MCHENRY, MCKENZIE, MERCER, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, TRAILL, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 7, 8, 10, 11, 14, 18, 18, 19, 20, 24, 25, 26, 27, 28, 29, 30, 39, 40, 42, 43, 45, 47 | Map, Photo |
| Compositae | Sonchus oleraceus | , common sowthistle | BARNES, BOTTINEAU, CASS, EDDY, FOSTER, GRAND FORKS, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, WARD. Introduced. | 1, 3, 4, 5, 7, 8, 10, 11, 17, 19, 24, 25, 26, 27, 28, 29, 30, 36, 39, 40, 42, 43, 45, 47 | Map |
| Rosaceae | Sorbaria sorbifolia | , false spiraea | GRAND FORKS, GRIGGS. Introduced. | 4, 7 | Map, Photo |
| Rosaceae | Sorbus aucuparia | , European mountain ash | BENSON. Introduced. | 29, 39, 40, 47 | Map |
| Rosaceae | Sorbus scopulina | , Greene's mountain ash | GRAND FORKS | 7, 29, 39 | Map |
| Gramineae | Sorghastrum nutans | , Indiangrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MERCER, MORTON, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN, TOWNER | 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 11, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Typhaceae | Sparganium emersum | , European bur-reed | BARNES, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, FOSTER, GRAND FORKS, GRIGGS, MCHENRY, MCLEAN, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, ROLETTE, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS. Introduced. | 1, 5, 6, 7, 8, 11, 13, 15, 16, 19, 21, 24, 29, 39, 41, 41, 45, 47 | Map |
| Typhaceae | Sparganium eurycarpum | , broadfruit bur-reed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 26, 28, 29, 30, 31, 32, 39, 41, 42, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Spartina cynosuroides | , big cordgrass | BENSON | 7 | Map |
| Gramineae | Spartina gracilis | , alkali cordgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo |
| Gramineae | Spartina pectinata | , prairie cordgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Caryophyllaceae | Spergula arvensis | , corn spurry | CASS. Introduced. | 3, 18, 27, 29, 39, 41, 43, 45 | Map |
| Caryophyllaceae | Spergularia maritima | , media sandspurry | BARNES, BURKE, DIVIDE, GRAND FORKS, LAMOURE, WALSH, WARD. Introduced. | 13, 17, 27, 29, 39, 43, 47 | Map |
| Caryophyllaceae | Spergularia salina | , salt sandspurry | BARNES, BURKE, DICKEY, DIVIDE, GRAND FORKS, KIDDER, LAMOURE, RAMSEY, STUTSMAN, WALSH, WARD | 2, 3, 4, 5, 6, 11, 15, 16, 18, 29, 39, 43, 47 | Map |
| Malvaceae | Sphaeralcea coccinea | , scarlet globemallow | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | Sphenopholis intermedia | , slender wedgescale | BOTTINEAU, DICKEY, EDDY, GRAND FORKS, MCLEAN, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, STUTSMAN, WALSH, WILLIAMS | 5, 7, 13, 14, 25, 27, 28, 29, 30, 39, 45 | Map |
| Gramineae | Sphenopholis nitida | , shiny wedgescale | GRAND FORKS, STUTSMAN | 7, 43 | Map |
| Gramineae | Sphenopholis obtusata | , prairie wedgescale | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo |
| Rosaceae | Spiraea alba | , white meadowsweet | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCLEAN, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 4, 5, 6, 7, 7, 8, 10, 11, 13, 14, 16, 17, 18, 18, 19, 21, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Orchidaceae | Spiranthes cernua | , nodding lady's tresses | BENSON, BURKE, CASS, KIDDER, MCHENRY, PEMBINA, RANSOM, RICHLAND, SARGENT, STUTSMAN | 1, 5, 6, 11, 25, 26, 27, 31, 34, 35, 39, 43 | Map |
| Orchidaceae | Spiranthes magnicamporum | , Great Plains lady's tresses | CASS, KIDDER, MCHENRY, RAMSEY, RANSOM, RICHLAND, STUTSMAN | 5, 15, 16, 21, 29, 34, 39, 41, 47 | Map |
| Orchidaceae | Spiranthes romanzoffiana | , hooded lady's tresses | BENSON, BURKE, MCHENRY, STUTSMAN | 1, 3, 4, 5, 13, 15, 16, 18, 20, 29, 33, 34, 35, 39, 41, 43, 45, 47 | Map, Photo, Photo |
| Araceae | Spirodela polyrrhiza | , common duckmeat | BARNES, BOTTINEAU, CASS, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN | 1, 4, 5, 5, 6, 7, 11, 15, 16, 25, 26, 27, 28, 29, 31, 39, 41, 43, 47 | Map, Photo |
| Gramineae | Sporobolus airoides | , alkali sacaton | BILLINGS, BOWMAN, GOLDEN VALLEY, GRAND FORKS, RAMSEY, SLOPE, WARD | 1, 4, 5, 7, 29, 32, 33, 34, 35, 39, 41, 43 | Map, Photo |
| Gramineae | Sporobolus compositus | , composite dropseed | BARNES, BOTTINEAU, BOWMAN, CASS, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STEELE, STUTSMAN, TRAILL, WALSH | 1, 2, 5, 6, 7, 8, 10, 11, 12, 19, 20, 21, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45 | Map |
| Gramineae | Sporobolus contractus | , spike dropseed | EDDY, MCHENRY, RICHLAND | 5 | Map |
| Gramineae | Sporobolus cryptandrus | , sand dropseed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 14, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map |
| Gramineae | Sporobolus heterolepis | , prairie dropseed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, SARGENT, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 17, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45 | Map |
| Gramineae | Sporobolus neglectus | , puffsheath dropseed | BILLINGS, BOTTINEAU, BURLEIGH, CASS, EMMONS, GRANT, KIDDER, PEMBINA, RAMSEY, RICHLAND, SIOUX, STARK, STUTSMAN, WARD, WILLIAMS | 3, 4, 5, 7, 13, 17, 21, 24, 25, 26, 27, 28, 29, 30, 32, 39, 41, 43, 45 | Map |
| Gramineae | Sporobolus vaginiflorus | , poverty dropseed | BARNES, BILLINGS, BOTTINEAU, BURLEIGH, CASS, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCINTOSH, NELSON, PEMBINA, RAMSEY, RICHLAND, SIOUX, STARK, STUTSMAN, WALSH, WILLIAMS | 1, 11, 29, 31, 39 | Map |
| Labiatae | Stachys aspera | , hyssopleaf hedgenettle | BARNES, BOTTINEAU, CASS, PEMBINA, RANSOM | 3, 5, 27 | Map |
| Labiatae | Stachys palustris | , marsh hedgenettle | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 43, 44, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Labiatae | Stachys tenuifolia | , smooth hedgenettle | BARNES, BURKE, CASS, PEMBINA, RANSOM, STUTSMAN, WALSH | 1, 5, 11, 13, 15, 16, 29, 30, 39, 41, 43, 45 | Map |
| Cruciferae | Stanleya pinnata | , desert princesplume | BILLINGS, GOLDEN VALLEY, MCKENZIE, SLOPE | 1, 3, 5, 6, 7, 18, 27, 29, 32, 39, 41, 43, 45, 47 | Map |
| Caryophyllaceae | Stellaria crassifolia | , fleshy starwort | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DIVIDE, EMMONS, GRAND FORKS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TRAILL, WARD, WILLIAMS | 1, 3, 4, 5, 11, 13, 15, 16, 17, 18, 26, 27, 29, 30, 31, 39, 41, 43, 44, 45, 47 | Map |
| Caryophyllaceae | Stellaria graminea | , grass-like starwort | CASS. Introduced. | 29, 39, 43 | Map |
| Caryophyllaceae | Stellaria longifolia | , longleaf starwort | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, GRAND FORKS, LAMOURE, MCHENRY, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 21, 25, 26, 27, 29, 30, 39, 41, 42, 43, 45, 47 | Map, Photo |
| Caryophyllaceae | Stellaria longipes | , longstalk starwort | BARNES, BENSON, BURKE, CASS, CAVALIER, DIVIDE, EDDY, GRAND FORKS, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RICHLAND, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 10, 11, 13, 15, 16, 17, 18, 19, 21, 27, 29, 30, 39, 41, 43, 47 | Map, Photo, Photo |
| Caryophyllaceae | Stellaria media | , common chickweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, NELSON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, STARK, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 43, 45, 47 | Map, Photo |
| Compositae | Stenotus armerioides | , thrift mock goldenweed | ADAMS, BILLINGS, BOWMAN, DIVIDE, DUNN, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, MOUNTRAIL, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 7, 7, 13, 24, 27, 29, 32, 39, 41, 43, 47 | Map, Photo |
| Compositae | Stephanomeria minor | , lesser wirelettuce | BILLINGS, SLOPE, STARK | 5, 29, 32, 33, 35, 39, 41, 43, 47 | Map |
| Compositae | Stephanomeria runcinata | , desert wirelettuce | BILLINGS, BOWMAN, DUNN, MCKENZIE, SLOPE, STARK | 5, 7, 24, 29, 33, 35, 39, 41, 47 | Map |
| Leguminosae | Strophostyles leiosperma | , slickseed fuzzybean | ADAMS, EMMONS, GRANT, HETTINGER, MORTON, RANSOM, RICHLAND, SARGENT | 1, 3, 5, 7, 18, 25, 26, 27, 29, 31, 39, 41, 43 | Map |
| Potamogetonaceae | Stuckenia filiformis | , fineleaf pondweed | BARNES, DIVIDE, GRAND FORKS, KIDDER, RAMSEY, SIOUX, STEELE, STUTSMAN | 1, 4, 5, 5, 7, 11, 15, 16, 29, 33, 34, 35, 39, 41, 43, 43, 47, 48 | Map, Photo, Photo |
| Potamogetonaceae | Stuckenia pectinata | , sago pondweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 11, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 44, 45, 45, 47, 48 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Potamogetonaceae | Stuckenia vaginata | , sheathed pondweed | BOTTINEAU, GRAND FORKS, GRIGGS, KIDDER, MCLEAN, MOUNTRAIL, OLIVER, RAMSEY, ROLETTE, STUTSMAN, WALSH | 4, 5, 5, 6, 7, 15, 21, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map, Photo, Photo |
| Amaranthaceae | Suaeda calceoliformis | , Pursh seepweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Amaranthaceae | Suaeda moquinii | , Mojave seablite | BILLINGS, BURLEIGH, DUNN, GOLDEN VALLEY, GRANT, MCKENZIE, MCLEAN, MOUNTRAIL, SLOPE, STARK, WILLIAMS | 1, 3, 5, 6, 7, 13, 24, 27, 29, 32, 39, 41, 43, 47 | Map |
| Amaranthaceae | Suckleya suckleyana | , poison suckleya | DIVIDE, STARK | 1, 5, 18, 24, 27, 29, 39, 41, 43 | Map |
| Caprifoliaceae | Symphoricarpos albus | , common snowberry | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CAVALIER, DIVIDE, DUNN, EDDY, GRAND FORKS, HETTINGER, MCHENRY, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SLOPE, STARK, STEELE, WALSH, WARD, WELLS, WILLIAMS | 1, 4, 5, 7, 7, 8, 11, 13, 14, 18, 19, 24, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Caprifoliaceae | Symphoricarpos occidentalis | , western snowberry | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum ascendens | , western aster | GRAND FORKS, RAMSEY | 7, 45, 47 | Map |
| Compositae | Symphyotrichum boreale | , northern bog aster | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CAVALIER, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, STEELE, STUTSMAN, TRAILL, WARD | 1, 4, 5, 5, 6, 7, 8, 11, 13, 15, 16, 19, 25, 26, 28, 29, 30, 31, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum ciliatum | , rayless alkali aster | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MOUNTRAIL, NELSON, PIERCE, RAMSEY, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum ciliolatum | , Lindley's aster | BARNES, BOTTINEAU, CAVALIER, EDDY, GRAND FORKS, PEMBINA, ROLETTE, STUTSMAN, WALSH | 1, 4, 7, 11, 18, 19, 29, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum cordifolium | , common blue wood aster | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, GRAND FORKS, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT | 1, 6, 7, 11, 14, 25, 26, 27, 28, 30, 39, 41, 45 | Map |
| Compositae | Symphyotrichum ericoides | , white heath aster | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum falcatum | , white prairie aster | ADAMS, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, LAMOURE, MCHENRY, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 4, 5, 5, 7, 8, 13, 17, 18, 19, 21, 24, 27, 29, 39, 41, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum laeve | , smooth blue aster | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum lanceolatum | , white panicle aster | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 18, 19, 21, 24, 25, 26, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum novae-angliae | , New England aster | BARNES, BENSON, BOTTINEAU, CASS, EDDY, FOSTER, GRAND FORKS, GRIGGS, MCHENRY, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 3, 4, 5, 6, 7, 8, 9, 11, 15, 16, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45, 47 | Map, Photo |
| Compositae | Symphyotrichum oblongifolium | , aromatic aster | BARNES, BILLINGS, BOTTINEAU, BURLEIGH, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MORTON, MOUNTRAIL, NELSON, PEMBINA, RANSOM, RENVILLE, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 12, 13, 14, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo |
| Compositae | Symphyotrichum patens | , late purple aster | BOTTINEAU, ROLETTE | 4 | Map |
| Compositae | Symphyotrichum praealtum | , willowleaf aster | BARNES, BENSON, BURKE, GRAND FORKS, KIDDER, MERCER, NELSON, PEMBINA, PIERCE, RANSOM, RICHLAND, WARD | 3, 4, 7, 9, 18, 18, 27, 39, 45 | Map, Photo, Photo |
| Compositae | Symphyotrichum puniceum | , purplestem aster | BARNES, BENSON, BOTTINEAU, EDDY, GRAND FORKS, RANSOM, RICHLAND, ROLETTE, SARGENT | 1, 3, 5, 6, 8, 11, 15, 16, 18, 25, 26, 27, 28, 29, 33, 39, 41, 43, 45, 47 | Map |
| Compositae | Symphyotrichum sericeum | , western silver aster | CASS, RANSOM, RICHLAND, SARGENT | 1, 5, 7, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map |
| Compositae | Symphyotrichum ×amethystinum | , Amethyst aster | LOGAN, MERCER | 4, 29, 39, 41, 47 | Map, Photo |
| Boraginaceae | Symphytum officinale | , common comfrey | CASS. Introduced. | 5 | Map |
| Oleaceae | Syringa vulgaris | , common lilac | BENSON, CAVALIER, GRAND FORKS, LAMOURE, MCLEAN, MERCER, MOUNTRAIL, RAMSEY, SHERIDAN, STARK, STUTSMAN, TRAILL, WARD, WILLIAMS. Introduced. | 4, 5, 6, 7, 13, 17, 18, 21, 39, 40, 42, 43, 44, 45 | Map, Photo, Photo, Photo |
| Tamaricaceae | Tamarix chinensis | , five-stamen tamarisk | ADAMS, BARNES, BILLINGS, BOWMAN, BURLEIGH, DUNN, EMMONS, GRIGGS, KIDDER, MCKENZIE, MCLEAN, OLIVER. Introduced. | 36, 36, 37, 37, 39, 40 | Map |
| Tamaricaceae | Tamarix ramosissima | , saltcedar | ADAMS, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DUNN, EMMONS, GRANT, GRIGGS, HETTINGER, KIDDER, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, WILLIAMS. Introduced. | 1, 16, 29, 36, 37, 40, 43, 47 | Map |
| Compositae | Tanacetum balsamita | , costmary | CASS. Introduced. | 5 | Map |
| Compositae | Tanacetum vulgare | , common tansy | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MOUNTRAIL, PEMBINA, RAMSEY, RICHLAND, ROLETTE, STARK, STUTSMAN, WALSH, WARD. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 11, 13, 14, 17, 18, 21, 25, 26, 27, 28, 29, 30, 31, 32, 36, 39, 40, 42, 43, 44, 47 | Map, Photo, Photo, Photo |
| Compositae | Taraxacum laevigatum | , rock dandelion | BARNES, BILLINGS, BOTTINEAU, BURKE, CASS, DIVIDE, DUNN, EDDY, FOSTER, GRAND FORKS, GRIGGS, MCINTOSH, MERCER, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 3, 5, 7, 8, 10, 13, 14, 17, 19, 21, 25, 26, 27, 28, 29, 30, 32, 39, 40, 43, 47 | Map |
| Compositae | Taraxacum officinale | , common dandelion | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Tetraneuris acaulis | , stemless four-nerve daisy | ADAMS, BILLINGS, BOWMAN, DUNN, GOLDEN VALLEY, GRANT, HETTINGER, MCKENZIE, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 13, 18, 24, 27, 29, 32, 39, 41, 43, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Labiatae | Teucrium canadense | , Canada germander | BARNES, BENSON, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Thalictrum dasycarpum | , purple meadow-rue | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ranunculaceae | Thalictrum dioicum | , early meadow-rue | CAVALIER, STARK, STUTSMAN, WILLIAMS | 1, 4, 5, 7, 29, 39, 41, 43, 45, 47 | Map, Photo |
| Ranunculaceae | Thalictrum venulosum | , veiny meadow-rue | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SLOPE, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45, 47 | Map, Photo, Photo, Photo |
| Compositae | Thelesperma subnudum | , Navajo tea | DIVIDE, WILLIAMS | 4, 5, 13, 29, 33, 34, 39, 41, 43, 47 | Map |
| Cruciferae | Thelypodium integrifolium | , entireleaved thelypody | BOTTINEAU, BURLEIGH, EMMONS, KIDDER, LOGAN, MCINTOSH, MCLEAN, WARD | 1, 3, 5, 6, 16, 27, 28, 29, 31, 39, 41, 43, 47 | Map |
| Polypodiaceae | Thelypteris palustris | , eastern marsh fern | KIDDER, MCHENRY, PEMBINA, RANSOM, RICHLAND, SARGENT | 1, 5, 5, 6, 7, 15, 16, 22, 23, 25, 26, 27, 29, 31, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Leguminosae | Thermopsis rhombifolia | , prairie thermopsis | BILLINGS, BOWMAN, BURKE, BURLEIGH, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRANT, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, OLIVER, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 7, 12, 13, 18, 24, 27, 29, 31, 32, 39, 41, 42, 43, 44, 45 | Map |
| Santalaceae | Thesium ramosum | , flaxleaf | EDDY, TOWNER | 8, 27, 43, 47 | Map |
| Gramineae | Thinopyrum intermedium | , intermediate wheatgrass | BARNES, BILLINGS, BOWMAN, CASS, EMMONS, KIDDER, LOGAN, MCINTOSH, MERCER, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, SLOPE, STUTSMAN, WILLIAMS. Introduced. | 1, 5, 6, 7, 11, 18, 21, 25, 26, 29, 31, 39, 40, 41, 42, 43, 45 | Map |
| Gramineae | Thinopyrum ponticum | , tall wheatgrass | BILLINGS, DICKEY, EDDY, EMMONS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, OLIVER, RAMSEY, RANSOM, RICHLAND, SARGENT, STUTSMAN. Introduced. | 1, 2, 5, 6, 7, 8, 21, 26, 29, 31, 39, 40, 43, 43, 45 | Map |
| Cruciferae | Thlaspi arvense | , field pennycress | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS. Introduced. | 1, 3, 4, 5, 6, 7, 7, 8, 9, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Malvaceae | Tilia americana | , American basswood | BARNES, BENSON, BURLEIGH, CASS, CAVALIER, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LOGAN, MCINTOSH, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, STEELE, TRAILL, WALSH, WARD | 1, 3, 4, 5, 6, 7, 11, 14, 17, 18, 25, 26, 27, 29, 30, 31, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Townsendia exscapa | , stemless Townsend daisy | BILLINGS, BOWMAN, BURKE, DIVIDE, DUNN, GOLDEN VALLEY, MCKENZIE, MCLEAN, MORTON, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 3, 4, 5, 6, 12, 13, 17, 18, 24, 27, 29, 32, 39, 41, 43, 47 | Map, Photo, Photo |
| Compositae | Townsendia hookeri | , Hooker's Townsend daisy | BILLINGS, MCKENZIE, WILLIAMS | 5, 24, 29, 34, 39, 43, 47 | Map |
| Anacardiaceae | Toxicodendron rydbergii | , western poison ivy | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 6, 7, 7, 8, 11, 12, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 45 | Map, Photo, Photo |
| Commelinaceae | Tradescantia bracteata | , longbract spiderwort | BARNES, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DICKEY, DUNN, EMMONS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, OLIVER, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, TRAILL | 1, 2, 3, 5, 6, 7, 11, 12, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Commelinaceae | Tradescantia occidentalis | , prairie spiderwort | ADAMS, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EMMONS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 13, 18, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Compositae | Tragopogon dubius | , yellow salsify | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Compositae | Tragopogon lamottei | , Jack-go-to-bed-at-noon | BILLINGS, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, GRAND FORKS, HETTINGER, LAMOURE, MCHENRY, MCKENZIE, MOUNTRAIL, STARK, WARD, WILLIAMS. Introduced. | 2, 3, 5, 5, 7, 17, 24, 39, 40, 45 | Map |
| Compositae | Tragopogon porrifolius | , salsify | GRAND FORKS, RANSOM. Introduced. | 7, 18 | Map |
| Tofieldiaceae | Triantha glutinosa | , sticky tofieldia | BENSON | 29, 34, 39, 41, 43, 47 | Map |
| Zygophyllaceae | Tribulus terrestris | , puncturevine | ADAMS, HETTINGER, MERCER, SARGENT. Introduced. | 1, 25, 26, 27, 29, 39, 40, 41, 43, 47 | Map |
| Leguminosae | Trifolium arvense | , rabbitfoot clover | CASS. Introduced. | 29, 39, 40, 43 | Map |
| Leguminosae | Trifolium campestre | , field clover | BENSON, NELSON, RICHLAND, WARD. Introduced. | 1, 4, 9, 17, 25, 26, 27, 29, 39, 40, 43 | Map |
| Leguminosae | Trifolium dubium | , suckling clover | CASS, GRAND FORKS. Introduced. | 1, 7, 27, 29, 39, 40, 43 | Map |
| Leguminosae | Trifolium fragiferum | , strawberry clover | BURLEIGH. Introduced. | 29, 39 | Map |
| Leguminosae | Trifolium hybridum | , alsike clover | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 7, 8, 11, 13, 17, 18, 19, 20, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 40, 43, 45 | Map, Photo |
| Leguminosae | Trifolium incarnatum | , crimson clover | CASS. Introduced. | 18, 29, 39, 43 | Map |
| Leguminosae | Trifolium pratense | , red clover | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, NELSON, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STEELE, STUTSMAN, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 5, 6, 7, 8, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 40, 42, 43, 45 | Map, Photo, Photo |
| Leguminosae | Trifolium repens | , white clover | ADAMS, BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, STARK, STUTSMAN, WALSH, WARD, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 40, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Trifolium resupinatum | , reversed clover | CASS. Introduced. | 27, 29, 39, 43 | Map |
| Juncaginaceae | Triglochin concinna | , slender arrowgrass | BILLINGS, BOWMAN, DIVIDE, EMMONS, GOLDEN VALLEY, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, OLIVER, PIERCE, SIOUX, SLOPE, STARK, WARD, WILLIAMS | 1, 5, 15, 16, 24, 31 | Map |
| Juncaginaceae | Triglochin maritima | , seaside arrowgrass | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 6, 7, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Juncaginaceae | Triglochin palustris | , marsh arrowgrass | BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DIVIDE, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, ROLETTE, SLOPE, STARK, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 19, 21, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo |
| Melanthiaceae | Trillium cernuum | , whip-poor-will flower | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, EDDY, GRAND FORKS, GRIGGS, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, WALSH | 1, 3, 4, 6, 7, 7, 11, 14, 18, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 47 | Map, Photo, Photo, Photo, Photo |
| Campanulaceae | Triodanis leptocarpa | , slimpod Venus' looking-glass | DUNN, EMMONS, GRANT, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, SIOUX, SLOPE, STARK | 1, 4, 5, 6, 24, 27, 29, 31, 39, 41, 43 | Map, Photo |
| Campanulaceae | Triodanis perfoliata | , clasping Venus' looking-glass | BILLINGS, DUNN, GRANT, MCKENZIE, MORTON, PIERCE | 1, 3, 5, 7, 27, 29, 39, 41, 43 | Map |
| Gramineae | Triplasis purpurea | , purple sandgrass | RANSOM, RICHLAND | 1, 5, 25, 26, 29, 34, 39, 41, 43 | Map |
| Compositae | Tripleurospermum maritimum | , false mayweed | BARNES, BOTTINEAU, BURKE, CASS, CAVALIER, GRAND FORKS, GRIGGS, MERCER, NELSON, PEMBINA, RAMSEY, RENVILLE, RICHLAND, ROLETTE, STEELE, TOWNER, WALSH, WARD. Introduced. | 1, 4, 5, 5, 7, 11, 13, 21, 25, 26, 28, 30, 39, 44 | Map, Photo, Photo, Photo |
| Compositae | Tripleurospermum perforatum | , scentless false mayweed | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, GRAND FORKS, GRIGGS, MERCER, NELSON, PEMBINA, RAMSEY, RENVILLE, RICHLAND, ROLETTE, STEELE, TOWNER, WALSH, WARD. Introduced. | 3, 4, 27, 29, 36, 40, 43, 47 | Map, Photo, Photo, Photo, Photo |
| Nyctaginaceae | Tripterocalyx micranthus | , smallflower sandverbena | BILLINGS, BOWMAN, DUNN, GOLDEN VALLEY, MCKENZIE, MORTON, SLOPE, STARK | 1, 5, 7, 24, 27, 29, 32, 39, 41, 43, 47 | Map |
| Gramineae | Trisetum canescens | , tall trisetum | CASS, RANSOM | 45 | Map |
| Gramineae | Trisetum spicatum | , spike trisetum | SLOPE | 39 | Map |
| Typhaceae | Typha angustifolia | , narrowleaf cattail | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS | 1, 2, 4, 5, 6, 7, 8, 9, 11, 11, 15, 16, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 40, 42, 43, 44, 45, 47, 48 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Typhaceae | Typha latifolia | , broadleaf cattail | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Typhaceae | Typha ×glauca | , white cattail | BARNES, BOWMAN, BURLEIGH, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, LAMOURE, MCHENRY, MCINTOSH, MCKENZIE, RAMSEY, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, TRAILL, WELLS | 2, 5, 6, 8, 15, 16, 19, 21, 24, 26, 39 | Map |
| Ulmaceae | Ulmus americana | , American elm | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 10, 11, 12, 13, 14, 17, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo |
| Ulmaceae | Ulmus pumila | , Siberian elm | BARNES, BOTTINEAU, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, MERCER, MORTON, MOUNTRAIL, PEMBINA, RAMSEY, RANSOM, RICHLAND, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 7, 8, 11, 12, 13, 19, 21, 24, 25, 26, 28, 29, 31, 39, 40, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Ulmaceae | Ulmus rubra | , slippery elm | BENSON, CASS, GRAND FORKS, RANSOM, RICHLAND, SARGENT, TRAILL | 1, 3, 4, 5, 5, 7, 18, 25, 26, 27, 29, 33, 34, 35, 39, 41, 43, 47 | Map, Photo |
| Ulmaceae | Ulmus thomasii | , rock elm | CASS | 1, 29, 39, 41, 43 | Map |
| Urticaceae | Urtica dioica | , stinging nettle | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 3, 4, 5, 6, 6, 7, 7, 8, 10, 11, 13, 14, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Lentibulariaceae | Utricularia intermedia | , flatleaf bladderwort | BENSON, BOTTINEAU, EDDY, MCHENRY, PEMBINA | 5, 5, 6, 7, 8, 15, 18, 19, 29, 34, 35, 39, 41, 43, 45 | Map |
| Lentibulariaceae | Utricularia macrorhiza | , common bladderwort | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Lentibulariaceae | Utricularia minor | , lesser bladderwort | BARNES, BENSON, BOTTINEAU, BURKE, EDDY, KIDDER, MCHENRY, PEMBINA, STUTSMAN | 5, 6, 7, 11, 15, 29, 34, 35, 39, 41, 43 | Map |
| Colchicaceae | Uvularia grandiflora | , largeflower bellwort | BURLEIGH, CASS, CAVALIER, RANSOM, RICHLAND, ROLETTE, SARGENT | 1, 3, 6, 7, 25, 26, 27, 29, 39, 41, 45, 47 | Map |
| Colchicaceae | Uvularia sessilifolia | , sessileleaf bellwort | CASS, CAVALIER, PEMBINA | 1, 3, 5, 5, 7, 18, 27, 29, 34, 35, 39, 41, 42, 43, 47 | Map |
| Caryophyllaceae | Vaccaria hispanica | , cow soapwort | BARNES, BENSON, BILLINGS, BOTTINEAU, CASS, DICKEY, GOLDEN VALLEY, GRANT, LAMOURE, MORTON, MOUNTRAIL, RANSOM, RICHLAND, SLOPE, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS. Introduced. | 1, 2, 4, 5, 7, 11, 13, 17, 18, 19, 25, 26, 27, 28, 29, 32, 39, 43, 47 | Map |
| Hydrocharitaceae | Vallisneria americana | , American eelgrass | BENSON, BOTTINEAU, GRAND FORKS | 7, 27, 28, 29, 41 | Map |
| Scrophulariaceae | Verbascum blattaria | , moth mullein | CASS. Introduced. | 5, 27, 29, 39 | Map |
| Scrophulariaceae | Verbascum thapsus | , common mullein | BOTTINEAU, CASS, CAVALIER, DUNN, EMMONS, GOLDEN VALLEY, KIDDER, LOGAN, MCINTOSH, MCKENZIE, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STARK, STUTSMAN, TRAILL, WALSH, WARD. Introduced. | 1, 4, 5, 6, 7, 17, 24, 25, 26, 27, 28, 29, 30, 31, 32, 36, 39, 40, 43, 45 | Map |
| Verbenaceae | Verbena bracteata | , bigbract verbena | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, WALSH, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Verbenaceae | Verbena hastata | , swamp verbena | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, NELSON, OLIVER, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Verbenaceae | Verbena stricta | , hoary verbena | BARNES, CASS, DICKEY, EMMONS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCLEAN, RANSOM, RICHLAND, SARGENT, STUTSMAN, TRAILL, WARD | 1, 2, 3, 4, 5, 6, 7, 17, 25, 26, 27, 29, 31, 39, 41, 43, 45 | Map, Photo, Photo |
| Verbenaceae | Verbena urticifolia | , white vervain | BARNES, BOTTINEAU, BURLEIGH, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, NELSON, PEMBINA, RANSOM, RICHLAND, SARGENT, SHERIDAN, STEELE, STUTSMAN, TRAILL, WALSH, WELLS | 1, 2, 4, 5, 6, 7, 8, 14, 19, 25, 26, 27, 28, 29, 30, 31, 39, 41, 43, 45 | Map, Photo, Photo, Photo |
| Compositae | Verbesina encelioides | , golden crownbeard | BILLINGS | 5, 7, 29, 39, 43 | Map |
| Compositae | Vernonia fasciculata | , prairie ironweed | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DICKEY, EMMONS, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MORTON, OLIVER, PEMBINA, PIERCE, RANSOM, RICHLAND, SARGENT, SIOUX, STEELE, STUTSMAN, WARD | 1, 2, 3, 4, 5, 6, 7, 7, 11, 15, 16, 17, 18, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo |
| Plantaginaceae | Veronica agrestis | , green field speedwell | RAMSEY. Introduced. | 21 | Map |
| Plantaginaceae | Veronica americana | , American speedwell | BARNES, BILLINGS, BOTTINEAU, CASS, DUNN, EDDY, GRAND FORKS, MCHENRY, PEMBINA, RANSOM, RICHLAND, SARGENT, WALSH | 1, 3, 5, 6, 7, 8, 11, 14, 15, 16, 18, 19, 24, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45 | Map |
| Plantaginaceae | Veronica anagallis-aquatica | , water speedwell | BARNES, BENSON, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, EDDY, EMMONS, FOSTER, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MORTON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH, WELLS | 1, 1, 2, 3, 4, 5, 6, 7, 7, 8, 11, 13, 15, 15, 16, 19, 25, 26, 27, 28, 29, 31, 39, 41, 43, 45, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Plantaginaceae | Veronica arvensis | , corn speedwell | SIOUX. Introduced. | 4 | Map, Photo |
| Plantaginaceae | Veronica peregrina | , neckweed | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, EDDY, EMMONS, FOSTER, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MERCER, MORTON, MOUNTRAIL, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 45 | Map, Photo, Photo, Photo, Photo |
| Plantaginaceae | Veronica scutellata | , skullcap speedwell | BENSON, BOTTINEAU, BURKE, PEMBINA, RAMSEY, WILLIAMS | 1, 5, 7, 13, 15, 18, 21, 27, 28, 29, 39, 41, 43, 45 | Map |
| Plantaginaceae | Veronicastrum virginicum | , Culver's root | GRAND FORKS, PEMBINA, SIOUX | 1, 5, 5, 7, 27, 29, 30, 34, 35, 39, 41, 43 | Map |
| Adoxaceae | Viburnum lentago | , nannyberry | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DUNN, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, STARK, STEELE, STUTSMAN, WALSH, WARD | 1, 3, 4, 5, 5, 6, 7, 7, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Adoxaceae | Viburnum opulus | , European cranberrybush | BARNES, BENSON, BOTTINEAU, BURLEIGH, CASS, CAVALIER, GRAND FORKS, MCHENRY, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, TOWNER, TRAILL, WALSH, WARD | 1, 3, 4, 5, 5, 6, 7, 7, 11, 14, 17, 18, 25, 26, 27, 28, 29, 30, 39, 40, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Adoxaceae | Viburnum rafinesquianum | , downy arrowwood | BOTTINEAU, CASS, CAVALIER, GRAND FORKS, PEMBINA, ROLETTE, WALSH | 1, 3, 4, 5, 5, 6, 7, 7, 14, 27, 28, 29, 30, 39, 41, 43, 45 | Map, Photo, Photo |
| Leguminosae | Vicia americana | , American vetch | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, HETTINGER, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 12, 13, 14, 17, 17, 18, 19, 21, 24, 25, 26, 27, 27, 28, 28, 29, 30, 31, 32, 32, 39, 41, 42, 43, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Leguminosae | Vicia cracca | , bird vetch | GRAND FORKS. Introduced. | 7 | Map |
| Leguminosae | Vicia sativa | , garden vetch | BOTTINEAU, DICKEY, DUNN, GOLDEN VALLEY, GRAND FORKS, MCKENZIE, MERCER, SLOPE, STARK, STUTSMAN. Introduced. | 3, 5, 7, 14, 18, 24, 27, 28, 29, 32, 39, 40 | Map |
| Leguminosae | Vicia villosa | , winter vetch | CASS, DICKEY, LAMOURE, STARK. Introduced. | 1, 2, 18, 24, 29, 39, 40, 41, 43 | Map |
| Violaceae | Viola adunca | , hookedspur violet | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, DIVIDE, DUNN, EDDY, GOLDEN VALLEY, GRAND FORKS, GRANT, LOGAN, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, OLIVER, PEMBINA, RAMSEY, RENVILLE, ROLETTE, SHERIDAN, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, WARD, WILLIAMS | 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 17, 18, 21, 24, 27, 28, 29, 30, 32, 39, 41, 43, 44, 45, 47 | Map, Photo |
| Violaceae | Viola blanda | , sweet white violet | PEMBINA | 5, 5, 29, 33, 34, 35, 39, 43, 47 | Map |
| Violaceae | Viola canadensis | , Canadian white violet | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Violaceae | Viola labradorica | , alpine violet | BILLINGS, BOTTINEAU, CASS, DUNN, GRAND FORKS, RANSOM, RICHLAND | 3, 5, 7, 25, 26, 27, 28, 29, 32, 33, 34, 35, 39, 41, 43, 45, 47 | Map |
| Violaceae | Viola missouriensis | , Missouri violet | EMMONS, RANSOM, RICHLAND, SARGENT | 1, 25, 43 | Map |
| Violaceae | Viola nephrophylla | , northern bog violet | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, CASS, DICKEY, DIVIDE, EDDY, EMMONS, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MERCER, MOUNTRAIL, NELSON, PEMBINA, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STEELE, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 11, 11, 12, 13, 14, 15, 16, 17, 17, 18, 18, 19, 21, 25, 25, 26, 26, 27, 28, 28, 29, 29, 30, 30, 31, 31, 32, 39, 39, 41, 41, 42, 43, 45, 45, 47, 47 | Map, Photo, Photo, Photo, Photo |
| Violaceae | Viola nuttallii | , Nuttall's violet | BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, RAMSEY, RANSOM, RICHLAND, SIOUX, SLOPE, STARK, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 11, 12, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Violaceae | Viola pedata | , birdfoot violet | GRAND FORKS | 7, 39 | Map |
| Violaceae | Viola pedatifida | , prairie violet | BARNES, BENSON, BILLINGS, BOTTINEAU, BURKE, BURLEIGH, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, NELSON, OLIVER, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, TOWNER, TRAILL, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 42, 43, 44, 45, 47 | Map, Photo, Photo, Photo, Photo |
| Violaceae | Viola pubescens | , downy yellow violet | BARNES, BOTTINEAU, CASS, CAVALIER, EDDY, GRAND FORKS, GRIGGS, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, WALSH, WARD | 3, 4, 6, 7, 7, 8, 11, 14, 17, 18, 19, 21, 25, 26, 27, 28, 29, 30, 39, 41, 43, 45, 47 | Map, Photo |
| Violaceae | Viola sempervirens | , evergreen violet | DUNN | 5, 24 | Map |
| Violaceae | Viola vallicola | , sagebrush violet | BENSON, RANSOM | 7, 18, 29, 39, 41, 45, 47 | Map |
| Vitaceae | Vitis riparia | , riverbank grape | BARNES, BENSON, BILLINGS, BOTTINEAU, BURLEIGH, CASS, DICKEY, DUNN, EMMONS, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCLEAN, MORTON, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WILLIAMS | 1, 2, 4, 5, 6, 7, 11, 13, 17, 24, 25, 26, 28, 29, 30, 31, 32, 39, 41, 42, 43, 44, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo |
| Vitaceae | Vitis vulpina | , frost grape | BARNES, BURLEIGH, CASS, GRAND FORKS, GRANT, MERCER, MORTON, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, STUTSMAN, WARD, WILLIAMS | 1, 3, 4, 5, 7, 14, 18, 25, 26, 27, 30, 42, 43, 45 | Map, Photo, Photo, Photo |
| Gramineae | Vulpia octoflora | , sixweeks fescue | BILLINGS, BURKE, BURLEIGH, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GOLDEN VALLEY, GRANT, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RANSOM, RICHLAND, SARGENT, SIOUX, SLOPE, STARK, STUTSMAN, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 18, 19, 24, 25, 26, 27, 29, 30, 31, 32, 39, 41, 43 | Map |
| Araceae | Wolffia columbiana | , Columbian watermeal | CASS, CAVALIER, PEMBINA, RANSOM, RICHLAND, SARGENT, WARD | 1, 5, 15, 16, 26, 29, 33, 34, 35, 39, 41, 42, 43, 47 | Map |
| Polypodiaceae | Woodsia oregana | , Oregon cliff fern | BENSON, BILLINGS, EMMONS, GOLDEN VALLEY, GRANT, MCKENZIE, MCLEAN, MORTON, OLIVER, SIOUX, SLOPE, STARK | 1, 3, 4, 5, 6, 18, 22, 23, 24, 29, 31, 32, 39, 41, 43, 45, 47 | Map, Photo, Photo, Photo |
| Gramineae | ×Achnella caduca | , Mandan ricegrass | BURLEIGH. Introduced. | 5, 29, 39, 41 | Map |
| Compositae | Xanthium spinosum | , spiny cocklebur | BENSON, BOTTINEAU, LAMOURE, PEMBINA, RANSOM, WARD. Introduced. | 3, 7, 18, 39, 45 | Map |
| Compositae | Xanthium strumarium | , rough cocklebur | ADAMS, BARNES, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MORTON, MOUNTRAIL, OLIVER, PEMBINA, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 3, 4, 5, 6, 7, 7, 8, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 24, 25, 25, 26, 27, 28, 29, 30, 30, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Gramineae | ×Elyhordeum iowense | , Iowa barley | WARD | 29, 39 | Map |
| Gramineae | ×Elyhordeum macounii | , Macoun's barley | ADAMS, BARNES, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, SARGENT, SHERIDAN, SLOPE, STARK, STUTSMAN, WARD, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 10, 11, 13, 14, 17, 18, 21, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39, 45 | Map |
| Gramineae | ×Elyhordeum montanense | , mountain barley | WARD | 17, 29, 39, 41 | Map |
| Asparagaceae | Yucca glauca | , soapweed yucca | BILLINGS, BURLEIGH, DUNN, EMMONS, GOLDEN VALLEY, GRAND FORKS, GRANT, HETTINGER, KIDDER, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, OLIVER, SIOUX, SLOPE, STARK, WILLIAMS | 1, 3, 4, 5, 6, 7, 12, 13, 18, 24, 27, 29, 31, 32, 39, 41, 42, 43, 45, 47 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Potamogetonaceae | Zannichellia palustris | , horned pondweed | ADAMS, BENSON, BILLINGS, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DUNN, EDDY, EMMONS, FOSTER, GOLDEN VALLEY, GRAND FORKS, KIDDER, LAMOURE, LOGAN, MCINTOSH, MCKENZIE, MERCER, MORTON, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RICHLAND, ROLETTE, SARGENT, SIOUX, SLOPE, STARK, STEELE, STUTSMAN, TRAILL, WALSH, WARD, WELLS, WILLIAMS | 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 16, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 31, 32, 39, 41, 43, 44, 47, 48 | Map, Photo |
| Rutaceae | Zanthoxylum americanum | , common pricklyash | CASS, GRAND FORKS, RANSOM, RICHLAND, SARGENT | 1, 6, 7, 7, 25, 26, 27, 29, 39, 41, 43 | Map |
| Melanthiaceae | Zigadenus elegans | , mountain deathcamas | BARNES, BENSON, BOTTINEAU, BOWMAN, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, FOSTER, GRAND FORKS, GRANT, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MOUNTRAIL, NELSON, OLIVER, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, SLOPE, STEELE, STUTSMAN, TOWNER, WALSH, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 11, 13, 14, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 43, 44, 45, 47 | Map, Photo, Photo |
| Melanthiaceae | Zigadenus nuttallii | , Nuttall's deathcamas | RANSOM | 43 | Map |
| Melanthiaceae | Zigadenus venenosus | , meadow deathcamas | BURKE, DICKEY, DIVIDE, DUNN, EDDY, MOUNTRAIL, RENVILLE, SHERIDAN, SLOPE, WARD, WILLIAMS | 1, 3, 4, 5, 7, 8, 13, 17, 19, 24, 27, 29, 32, 39, 41, 47 | Map, Photo, Photo |
| Gramineae | Zizania palustris | , northern wildrice | BARNES, CASS, DICKEY, EDDY, EMMONS, GRAND FORKS, GRIGGS, LAMOURE, LOGAN, RANSOM, RICHLAND, SARGENT, STEELE, STUTSMAN, TRAILL, WALSH | 1, 2, 3, 5, 6, 7, 8, 11, 14, 15, 16, 18, 19, 25, 26, 27, 29, 31, 39, 41, 45 | Map |
| Umbelliferae | Zizia aptera | , meadow zizia | BARNES, BENSON, BOTTINEAU, BURKE, BURLEIGH, CASS, CAVALIER, DICKEY, DIVIDE, DUNN, EDDY, EMMONS, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, LOGAN, MCHENRY, MCINTOSH, MCKENZIE, MCLEAN, MERCER, MOUNTRAIL, NELSON, PEMBINA, PIERCE, RAMSEY, RANSOM, RENVILLE, RICHLAND, ROLETTE, SARGENT, SHERIDAN, STARK, STEELE, STUTSMAN, WARD, WELLS, WILLIAMS | 1, 2, 3, 4, 5, 6, 7, 7, 8, 9, 10, 11, 13, 17, 18, 19, 21, 24, 25, 26, 27, 28, 29, 30, 31, 39, 41, 42, 43, 44, 45 | Map, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo, Photo |
| Umbelliferae | Zizia aurea | , golden zizia | BARNES, BENSON, BOTTINEAU, CASS, CAVALIER, DICKEY, EDDY, GRAND FORKS, GRIGGS, KIDDER, LAMOURE, MCHENRY, NELSON, PEMBINA, RANSOM, RICHLAND, ROLETTE, SARGENT, STEELE, STUTSMAN, WALSH | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 14, 18, 19, 25, 26, 27, 28, 29, 30, 39, 41, 42, 43, 45 | Map, Photo, Photo, Photo, Photo, Photo |
| Family | Species | Counties | Sources | Extra info |
NOTES
- To contribute, please send me e-mail
- See also: North Dakota plant manuals
- Some hints:
- By default, list is showing only 10 first species. You may want either to change it in "Show" dropbox, or browse with buttons located on the bottom riht corner of main table.
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- To find a plant, enter any part of its name into the search box (top right corner of the table). You may also want to sort the result.
- To make a county plant list, enter county name in a search box and (optionally) sort the counties column.
- To make a plant list of a particular source, enter its number (without dot or comma) into the search box and (optionally) sort the sources column.
- Everything described above works best in Mozilla Firefox and Google Chrome browsers. If you do not see described effects, consider to change and/or update the browser.
- To download the whole database, simply save this page as *.html file.
- Red color is used for the names of rare and endangered "plants at risk".
- Blue color is used for the names of North Dakota state and counties noxious weeds whereas species non-native to North America are labeled as "introduced".
- If you do not find a name, please consider to check if it is not regarded now as a synonym. For example, all Aster names are now replaced with Symphyotrichum, Machaeranthera and others. To indicate sources contained synonyms, we use slanted font.
- For the native uses of North Dakota plants, see the North Dakota Ethnobotany Database.
- Flowering plant families are given in the accordance with the Systema Angiospermarum classification (specifically, with version 5.25), except for Labiatae s.l. which used here in more traditional sense. The preference is given to the traditional names of families (Compositae, Gramineae etc.) instead of alternative names (Asteraceae, Poaceae etc.). All ferns are listed under "Polypodiaceae".
- Species names (scientific and common) and species concepts are given in the accordance with USDA PLANTS database (2012/03/05, accessed via Taxonomic Name Resolution Service v3.0). Some taxomic concepts were updated with the recent version of USDA PLANTS.
- Due to the nature of herbarium databases used, cultivated plants are included in the checklist. However, their distribution is not accessed completely.
- Significant number of species do not have county data. We prefer to consider then as "questionable". To separate them from others, you may want to sort the counties column.
- Due to the enormous size of data (several thousands images), not all photographs are placed correctly. Please send corrections to the author's e-mail dactylorhiza at gmail.com. To make determination easier, all "Photo" links refer to the photographs in full (original from camera) resolution.
SOURCES
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ACKNOWLEDGEMENTS
This checklist is the result of collaborative efforts of many people. I would like to thank Alex Radi, Andrew Albright, Briana Luxem, Craig Whippo, Dallas Diede, Dallas Fry, Jared Schumaier, Jeremy Benson, Joshua Beaudoin, Joshua Glaser, Leslie Yellowhammer, Lisa Mathwich, Liudmila Abramova, Raymond Krueger, Ryan Perry, Sara Lopez-Gietzen, Tom McKenna, Tyson Friesen, Vera Shipunova for their invaluable help in the field; to Allysa Evans, Bryan Phillips, Chigozie Anaukwu, Cody Hamm, Darin Mott, Ekaterina Shipunova, Eric Cliplef, Gerald Guala, Gursharan Kaur, Hye Ji Lee, Jacob Schillo, Jamie Council, Jason Theodore, Jennifer Asbury, Jennifer Montoya, Jessica Rosin, Jin Hee Choi, Jose Orantes, Joshua Johnson, Keila Aquilar, Laura Barker, Leah Ronholdt, Mark Gabel, Miranda Nichols, Nevin Gillis, Rachel Alfaro, Sabrina Benarroch, Sarah Henderson, Vasily Shipunov for their help in data and herbarium management; to Karla Bredahl, Christian Keller, Christina Rust, Heidi Super, Neil Sharpe, Paul Markel, Robert Crackel, Sue Lommen, Toni Schawtz, for their help in project administration; and to Christian Beachy, David Mushet, Edward DeKeyser, Kathryn Yurkonnis, Mark Fisher, Ron Royer, William Barker for the information about North Dakota plants and wild areas. I am also extremely grateful to the creators and maintainers of two software tools: Taxonomic Name Resolution Service and R Language and Environment for Statistical Computing which made my work on this book a lot easier and faster. Most of fieldwork and data preparation were done with financial support from North Dakota INBRE, Prairie Biotic Research, Inc., University of North Dakota herbarium, Great Plains Center for Community Research and Service (GPCCRS) and Department of Biology of Minot State University.