Coefficient of Conservatism:
Coefficient of Wetness:
A Pacific coast species collected as a ballast waif at Detroit, Wayne Co., in 1894 (O. A. Farwell 1454, BLH).
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 12, 2017. http://www.michiganflora.net/species.aspx?id=1328.