Publication: Bot. Gaz. 61: 30. 1916.
Origin: Native
Herbarium search: CPNWH
Notes: FNA26: "Variation in the gross morphology, karyology, and ecology of the North American populations has been documented (S. Kawano et al. 1971) and compared with that of disjunct populations in Japan (S. Kawano et al. 1968b)."
Last updated 5/29/2020 by David Giblin.