true senna
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| Noun | 1. |  true senna - erect shrub having racemes of tawny yellow flowers; the dried leaves are used medicinally as a cathartic; sometimes placed in genus CassiaAlexandria senna, Alexandrian senna, Cassia acutifolia, Cassia augustifolia, Indian senna, Senna alexandrina, tinnevelly senna senna - any of various plants of the genus Senna having pinnately compound leaves and showy usually yellow flowers; many are used medicinally |
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