Checklist » Acoraceae » Acorus americanus
Last updated 5/20/2019 by David Giblin.
Acorus americanus (Raf.) Raf.[FNA22, HC2]
American sweetflag, several-vein sweetflag

Publication: New Flora and Botany of North America. 1: 57. 1836.

Origin: Native

selected vouchers: WS

Notes: Known only from Spokane Co. Taxonomy follows FNA, distinguishing North American and Eurasian taxa at the species level. They differ in their chromosome level, fertility, and leaf venation.


» 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