Acorus calamus

Acorus calamus is a wetland perennial with sword-shaped leaves and a fragrant rhizome. It is known as sweet flag and has been used in traditional medicine and as a flavoring.

Acoraceae: Acoraceae is a family of flowering plants containing the genus Acorus. This is the family to which sweet flag belongs.
Traditional medicine: Traditional medicine comprises health practices and knowledge developed within particular cultures and passed across generations. Sweet flag has been used medicinally in several regional traditions.
Clonal plant: A clonal plant can produce genetically identical shoots through vegetative growth. Its spreading rhizomes let sweet flag form persistent patches without relying only on seed.
Acorus americanus: Acorus americanus is a North American species of Acorus that is often treated as distinct from Acorus calamus. It is a closely related North American plant sometimes confused with sweet flag.
Acorus: Acorus is a genus of aromatic, rhizomatous wetland plants in the family Acoraceae. Sweet flag is one species in this small genus.
Acorus calamus in Ayurveda: Acorus calamus, called vacha in Ayurveda, is a plant used in traditional South Asian medicine. This tradition uses the rhizome in preparations associated with speech, memory, and digestion.
Aerenchyma: Aerenchyma is plant tissue containing air spaces that facilitate gas movement within submerged or waterlogged organs. Air-filled tissues help wetland plants transport oxygen to roots in saturated soil.
Iris pseudacorus: Iris pseudacorus, or yellow flag iris, is a wetland iris with yellow flowers and sword-shaped leaves. Its leaf shape and habitat resemble sweet flag, but it belongs to the iris family.
Rhizome: A rhizome is a horizontal underground plant stem that can produce roots and shoots. Its aromatic rhizome is the plant part most often harvested.
Acorus calamus in Chinese medicine: Acorus calamus is a medicinal plant used in some Chinese herbal practices. Its rhizome appears in herbal preparations, though botanical identity and naming can vary.

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