Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Included in S. houghtonii in Michigan Flora
Moist (at least in the spring) swales in sandy jack pine stands; very local and endemic to Michigan.
This is a unique octoploid, resembling a large S. houghtonii and also involving S. ptarmicoides as one ancestor, but occurring in a unique habitat and with a distribution not linked to present (and immediately past) Great Lakes shorelines. Both plants and heads are larger than in S. houghtonii. See Laureto & Pringle (2010) for details of this striking Michigan endemic.