Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Very rare in dry prairies; still extant on Squirrel and Walpole islands, on the Ontario side of the mouth of the St. Clair River (and in Essex Co.), but known in Michigan only from a collection by C. K. Dodge in dry ground on nearby Harsens Island, St. Clair Co., in 1896.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 21, 2018. http://www.michiganflora.net/species.aspx?id=2265.