Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
This apomictic complex occurs in the Maritime Provinces of Canada, west to James Bay and Alaska, and south in the West nearly to Mexico; it is ± disjunct in the northwestern part of Lake Superior (on Caribou Island in the Isle Royale archipelago and also in nearby Ontario).
Only on Isle Royale
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 15, 2017. http://michiganflora.net/species.aspx?id=221.