Coefficient of Conservatism:
Coefficient of Wetness:
B. S. Walters
Gravel roadsides, introduced from farther west, collected in Berrien Co. by K. Dritz in 1994.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 23, 2021. https://www.michiganflora.net/species.aspx?id=953.