Coefficient of Conservatism:
Coefficient of Wetness:
A European species, collected in disturbed ground at Ironwood, Gogebic Co., in 1919 (E. A. Bessey 3099, MSC).
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=2760.