Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
A waif collected in 1902 by E. J. Cole from a farm in Kent Co., where other adventives from the west and south were also found, reportedly originating in refuse from a felt-boot factory.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 14, 2017. http://www.michiganflora.net/species.aspx?id=506.