Coefficient of Conservatism:
Coefficient of Wetness:
R. maritima of Michigan Flora.
Known only from Manistique Lake, straddling Luce and Mackinac Cos., where collected in up to 2.4 m of water and often abundant washed on shore after a storm. This was first collected in 1936 in “beds extending along the shore near Cedar Springs Resort” and may well not have been part of the native flora.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 17, 2018. http://www.michiganflora.net/species.aspx?id=2345.