# Observations on the sea aster (Aster tripolium). White Sea, July 2000
PLANT	Number of plant
SUBST	Type of substrate
DATE	Date
TIME	Time (in fractions from 24 h)
WATER.DIST	Distance to water edge, m
CLOSED	Number of the completely closed heads
ALMOST.CLOSED	Number of heads which are almost closed
HALF.CLOSED	Number of half-closed heads
OPENED	Number of opened heads