1. (noun) erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus Cassia

• alexandrian senna
• cassia acutifolia
• cassia augustifolia
• indian senna
• senna alexandrina
• tinnevelly senna
• true senna

1. (noun) erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus Cassia

• senna