A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium, Burke Museum
Hosted by the University of Washington Herbarium, Burke Museum
Last updated 1/13/2024 by David Giblin.
Acorus americanus (Raf.) Raf.[FNA22, HC2]
American sweetflag, several-vein sweetflag
[This taxon is excluded from Washington]
Publication: New Flora and Botany of North America. 1: 57. 1836.
Origin: Native
selected vouchers: WS
Notes: Known only from a single, historic collection with no habitat data from Spokane Co. Additional specimens are needed to demonstrate that this species is established in the flora. Taxonomy follows FNA, distinguishing North American and Eurasian taxa at the species level. They differ in their chromosome level, fertility, and leaf venation.
References:
» Packer, J. G. and G. S. Ringius. 1984. The distribution and status of Acorus (Araceae) in Canada. Canad. Journal of Botany 62: 2248-2252.
Synonyms & Misapplied Names:
Acorus calamus L. var. americanus Raf.
Acorus calamus L. var. americanus H. Wulff
