Publication: In A. von Humboldt et al., Nov. Gen. Sp. 4(fol.): 81. 1818; 4(qto.): 103. 1820.
Origin: Native
Herbarium search: CPNWH
Notes: FNA20: "Variety simplex is found in western North America and is disjunct along the shores of the upper Great Lakes and in southern Quebec."
Last updated 11/17/2020 by David Giblin.