Publication: Fl. N.W. Amer. 1: 101. 1897.
Origin: Native
Herbarium search: CPNWH
Notes: Extirpated from Washington according to WNHP. One specimen (Ed Alverson, 1987) at WTU from a population in Thurston County. Otherwise only known from Oregon.
Last updated 2/3/2024 by David Giblin.