Dried fruit of Cassia fistula L. (Cathartocarpus fistula [L.] Pers.), Leguminosae. Habit. Upper Egypt, E. India; cultivated in tropical America and Africa. The pulp of the ripe fruit, cassia pulp, is an almost black, viscid mass with a sweetish taste. Constit. Hydroxymethylanthraquinones, gum, tannin, albuminoids, about 60% sugars.
Cathartic.