Arisae'ma (A'rum) triphyl'lum, Indian Turnip. -- The cormus, U.S.P. 1820-1860; N. America. Plant acaulescent, leaves 2, 3-divided, 5-17.5 Cm. (2-7') long, 2.5-7.5 Cm. (1-3') wide. Corm 2.5-5 Cm. (1-2') broad, brownish-gray, inside white, mealy, taste burning, acrid: contains volatile acrid principle, starch, fat, gum, resin, calcium oxalate (gives acridity). Stimulant, expectorant, diaphoretic; irritant; colic, flatulence, asthma, whooping cough, chronic catarrh, rheumatism, bronchitis, aphthous sores, ringworm; in honey, syrup, ointment. Dose, gr 5-15 (.3-1 Gm.).