Coefficient of Conservatism:
Coefficient of Wetness:
B. S. Slaughter
Barely found as far north as Michigan, in prairies. Not collected since 1904, but still extant on Walpole Island in adjacent Lambton Co., Ontario.
St. Clair County
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. March 22, 2018. http://michiganflora.net/species.aspx?id=1130.