Acorus americanus (Rafinesque) Rafinesque. American Calamus, Sweetflag. Phen: May-Jun. Hab: Marshes, wet meadows, other wet areas, limey seeps. Dist: NS west to AK, south to n. NJ, DC (allegedly), c. OH, c. IN, c. IL, IA, NE, MT, ID, and WA.
Origin/Endemic status: Native
Taxonomy Comments: This species is apparently a fertile diploid.
Other Comments: Because this species has not generally been recognized in floras, its distribution is poorly known; additional distributional records should be expected and sought.
Synonymy: = AqW, FNA22, Il, K1, K3, K4, Mi, NE, NY, Pa; < Acorus americanus (Raf.) Raf. – W; < Acorus calamus L. – C, F, G, GrPl, GW1, NeUS, Tat
Wetland Indicator Status:
Heliophily: 9
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