Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Moist, often calcareous and/or sandy ground at edges of conifer (especially cedar and fir) forests and thickets near the northern shores of Lakes Michigan and Huron, even on mossy logs in rivers and streams through such forests; also along roads, trails, clearings, and similar openings; on rock shores of Lake Superior.
The St. Clair Co. record seems quite disjunct, but the plant is well known from Lambton Co., Ontario, and then north along the east shore of Lake Huron to the Bruce Peninsula.