Coefficient of Conservatism:
Coefficient of Wetness:
M. R. Penskar
Sandy shores of lakes and ponds with fluctuating water levels. A tiny annual, like E. geniculata in having shiny black achenes, but even smaller. First collected in Michigan by J. A. Churchill in Muskegon Co. (see Churchill, 1976).
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 11, 2017. http://michiganflora.net/species.aspx?id=1101.