Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Open often rocky, dry forests, forested dunes (with pines), cedar-fir forests and thickets (often in calcareous sites), aspens, and hardwoods. A species of the northwestern United States and adjacent Canada, occurring disjunctly in the northern Great Lakes region, mostly quite close to the shores of the Great Lakes.
The characteristic bristly pubescence on the summit of the ovary should not be confused with the feathery styles that are present in this as well as other species.