Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
A native of Europe and Asia Minor, once cultivated as a medicinal plant, only very locally established on river banks and roadsides. First collected in 1967 in Ingham Co.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 18, 2018. http://michiganflora.net/species.aspx?id=195.