Acorus Linnaeus. Calamus, Sweetflag.
Key to Acorus
A genus of 3-4 species, perennial herbs, widespread in north temperate and subtropical regions.
Ref: Grayum (1987); Haines (2000); Simmons et al. (2020); Spaulding et al. (2019); Thompson (2000a) In Flora of North America Editorial Committee (2000). Show full citations.
Show in key(s)
Hover over a shape, letter, icon, or arrow on the map to see what it means. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.