Coefficient of Conservatism:
Coefficient of Wetness:
Native in the western United States and Canada, but planted and occasionally spreading into dry fields in Michigan. First collected by R. Garlitz in Alpena Co. in 1987.
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=1194.