Publication: Bull. N. C. Exp. Sta. 175: 110. 1900.
Origin: Native
Herbarium search: CPNWH
Notes: Reported from Okanogan Co. by Phipps (1998). The varieties need more study, their ranges overlap greatly and the stated morphological differences seem minor.
References:
Last updated 12/1/2020 by David Giblin.