Coefficient of Conservatism:
Coefficient of Wetness:
Ranges mostly northwest of the Great Lakes; found here only along the north shore of Lake Superior, including Isle Royale, where it is apparently not common in open rocky and gravelly places.
Only on Isle Royale
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 14, 2017. http://michiganflora.net/species.aspx?id=592.