Coefficient of Conservatism:
Coefficient of Wetness:
Perhaps most characteristic of springy spots and ravines in rich beech-maple forests, but found in all kinds of deciduous forests, floodplains and swamps, cedar swamps, sometimes persisting in open settings after forest clearing.
Great variation exists in plant size, color of spathe, and time of flowering, the latter occurring from early May to mid-July. The variability in all these features is so great as to generate suspicion that this is a species complex of cryptic entities.