Coefficient of Conservatism:
Coefficient of Wetness:
Mostly on the Coastal Plain, north to Massachusetts and northern New York in the East and in the interior to southern Illinois; disjunct northwards, including into Michigan. In 1894 the species was brought to the attention of C. D. McLouth, an accomplished botanist of Muskegon. He collected the plant, and attempted to learn all he could about its history in the wetlands of what is presumably now part of the Muskegon State Game Area, and determined that the plant had apparently been abundant there since at least the middle of the 19th century. It has not been collected since McLouth.
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 13, 2017. http://michiganflora.net/species.aspx?id=408.