Coefficient of Conservatism:
Coefficient of Wetness:
Introduced from farther south and west; collected by E. Cable on a dry roadside in Ann Arbor, Washtenaw Co. in 2008.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 12, 2017. http://michiganflora.net/species.aspx?id=2818.