Coefficient of Conservatism:
Coefficient of Wetness:
B. S. Walters
Rocky bluffs, summits, and Lake Superior shore in Keweenaw Co.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 27, 2021. https://www.michiganflora.net/species.aspx?id=1040.