Was used in an exhibit for the International Congress of the History of Medicine in Montreal; used by the North American Indians; note: crude drugs were used in Canada quite extensively until around the 1920s; habitat of Arisaema triphyllum: moist woods from Florida to Canada; parts used: roots, powdered; uses: Hopis used it for sterility; the Pawnee applied it to head and temples for headache; also asthma, rheumatism and whooping cough; and as a source of flour; has as a constituent calcium oxalate; official preparation: U.S.P. 1820-1893.