Coefficient of Conservatism:
Coefficient of Wetness:
A Eurasian weed, of similar habitats as S. annuus but much more local. First collected in 1880 in Ingham Co.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 17, 2017. http://www.michiganflora.net/species.aspx?id=773.