“Sweet Flag (Acorus calamus), also called sweet calomel, grows in damp places in the north and south temperate regions. A member of the arum family, Araceae, it is one of the two species of Acorus. There is some indirect evidence that Indians of northern Canada, who employ the plant as a medicine and a stimulant, may chew the rootstock as an hallucinogen.”

Hallucinogenic Plants, Richard Evan Schultes,

Illustrated by Elmer W. Smith, p. 73

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