Calamus, aka Acorus Calamus, is a pungent perennial that grows in marshes, swamps, and other wetland habitats. Showing off sword-shaped leaves and tiny, greenish-yellow flowers, this entire plant has a noticeably aromatic quality. Calamus is also called the "sweet flag," and its leaves were once strewn on floors for their pleasant aromas. Calamus Root mostly propagates through its rhizomatous root system, and the roots have long been used in herbal practices. Some of Calamus Root's many uses include topical applications, adding scent to cosmetic products, and some internal applications that may be beneficiary, but require supervision from a qualified expert.