241. Cassia marilandica.—American Senna.
241. CASSIA MARILANDICA Linné.—AMERICAN SENNA. (Leaflets.) Oblong-lanceolate, about 25 mm. (1 in.) in length, mucronate at the apex and uneven and short-stalked at base; lower surface lighter green than upper surface. They have a weaker odor and taste than senna, but have similar medicinal properties, their action depending upon the same principle, cathartic acid.