Coefficient of Conservatism:
Coefficient of Wetness:
Crevices of rock shores of Lake Superior and open forests on thin rocky soil. A boreal species frequent on the north shore of Lake Superior and Isle Royale.
Including Isle Royale
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. June 24, 2019. https://www.michiganflora.net/species.aspx?id=1006.