Coefficient of Conservatism:
Coefficient of Wetness:
R. A. Schubert
Only from prairie soil in Kalamazoo Co., where C. R. Hanes first collected it in 1933. Only one or two multi-stemmed plants were known, but they were reported to have been there for over 25 years and they flourished for at least another decade. In 1941, one of the plants had over 50 blooming stems.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. October 25, 2020. https://michiganflora.net/species.aspx?id=398.