Calamus root

Acorus calamus is an herbaceous perennial growing in marshes, swamps, and other wetland habitats. The entire plant is aromatic and has sword-shaped leaves and tiny, greenish-yellow flowers. Calamus mostly propagates through its rhizomatous root system, and the roots have traditionally been used in herbal practices. Also called sweet flag, the leaves were once strewn on floors for their pleasant aroma. Calamus root can be used in topical applications, to scent cosmetic products, and in some internal applications under the supervision of a qualified expert.