Acorus calamus (Sweet Flag)
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Acorus calamus

Sweet Flag · Calamus · Sweet Sedge
PalearcticNearcticIndomalayan
J.F. Gaffard, Autoreille, France · CC BY-SA 3.0

Semi-aquatic perennial herb with intensely aromatic rhizomes containing α- and β-asarone. Distinguished from sweet flag's many lookalikes by the characteristic spicy-bitter scent. Among the most globally distributed sacred plants of antiquity, named in Egyptian, Greek, Vedic, and Chinese pharmacopoeias.

ECOLOGY & HABITAT

Marshes, slow streams, pond margins. Spreads clonally via rhizome; rarely sets fertile seed outside its native Asian range.

Distribution
Asia (native)EuropeNorth America (introduced and widely naturalised)
INDIGENOUS NAMES

The names this organism has been given by the cultures that have lived alongside it. Each carries an entire relationship — what is sacred is never simply translated.

  • vacha
    Sanskrit
  • wiike
    Cree
TRADITIONAL USE
  • Central in Ayurveda (vacha — "speech") and Traditional Chinese Medicine
  • Cree and Crow peoples of the Northern Plains chewed small pieces of root as a stimulant and to keep the mouth from drying on long walks
  • European folk pharmacy: stomachic, tonic, abortifacient
CULTURAL CONTEXT

Walt Whitman titled a cluster of poems in Leaves of Grass "Calamus". The β-asarone content varies dramatically by chemotype: triploid Indian-strain plants contain much more β-asarone (a probable carcinogen) than diploid North American populations. The FDA bans calamus as a food additive on this basis.

REFERENCES
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  • Motley 1994
  • Balakumbahan 2010
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