Coefficient of Conservatism:
Coefficient of Wetness:
Deciduous forests, especially rich beech-maple-hemlock stands, forested dunes, rarely under white-cedar. Reported from Isle Royale with the original description, but no specimens from there have been located. The species is wide-ranging in the western United States and adjacent Canada, re-occurring in the northern Great Lakes area east to the Ottawa district, Quebec. The panicle branches are reflexed at maturity. The base of the stem is ± bulbous; this character, together with the densely antrorse-hispid pedicels and retrorsely scabrous sheaths, makes even over-ripe specimens readily identifiable.