The leaves of several leguminous plants of the genus Cassia. (C. acutifolia, C. angustifolia, etc.). They constitute a valuable but nauseous cathartic medicine.
- Any of various plants of the genus Cassia, having pinnately compound leaves and showy, nearly regular, usually yellow flowers.
- The dried leaves of Cassia angustifolia or C. acutifolia, used medicinally as a laxative.