Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
Fencerows, roadsides, and railroad verges. Known from several sites in Lenawee Co., where first collected by R. W. Smith in 1985, far to the west of the native range and doubtless introduced.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 21, 2018. http://michiganflora.net/species.aspx?id=2550.