Coefficient of Conservatism:
Coefficient of Wetness:
Collected in 1949 in disturbed ground at East Lansing, Ingham Co. (R. S. Hauser 219, MSC). A rarely escaped annual European native.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 17, 2017. http://michiganflora.net/species.aspx?id=1306.