Coefficient of Conservatism:
Coefficient of Wetness:
Crevices in basic rock along Lake Superior at Isle Royale. A boreal species, which ranges from Iceland, Greenland, and the eastern Canadian Arctic south in North America to the northern Great Lakes, New England, and northern New York.
Only on Isle Royale
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 16, 2017. http://michiganflora.net/species.aspx?id=2670.