Coefficient of Conservatism:
Coefficient of Wetness:
Rock crevices and ledges at Scoville Point on Isle Royale and nearby Edwards Island.
Only on Isle Royale
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 17, 2017. http://www.michiganflora.net/species.aspx?id=1864.