As'Arum Canaden'Se, Wild Ginger. The rhizome (root), official 1820-1880; North America. Small plant with dividing stem; leaves 2, reniform; flowers brownish-purple, woolly; fruit capsule, 6-celled; rhizome 10 Cm. (4') long, 3 Mm. (J') thick, square or 2-edged, brownish, aromatic, pungent, bitterish; contains volatile oil 1.5-3.5 p. c, resin, asarin. Used as stimulant, carminative, tonic, diaphoretic, diuretic, for whooping-cough, colic, febrile affections. Dose, gr. 30 (2 Gm.); comp. syrup, 6.2 p. c., + fldext. ipecac .3, potassium carbonate .25, +, 3ss-l (2-4 Ml. (Cc.)); infusion, tincture.