Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
Moist shores, meadows, fields, thickets, and swales; oak-hickory forests, forest borders, grassy clearings. Plants with simple stems and sessile spathes belong here if the stems are very broadly winged (> ca. 3 mm).
Rare plants that do not seem to darken on drying may be distinguished from Sisyrinchium strictum by their wider stems (> 2.5 or more usually 3 mm), strongly unequal spathe bracts, and no tendency for peduncles and spathes to be geniculate at base.