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|Noun||1.||genus Senna - genus of shrubs and trees and herbs many of which are often classified as members of the genus Cassia|
rosid dicot genus - a genus of dicotyledonous plants
Caesalpinioideae, subfamily Caesalpinioideae - alternative name in some classification systems for the family Caesalpiniaceae
senna - any of various plants of the genus Senna having pinnately compound leaves and showy usually yellow flowers; many are used medicinally
Cassia marilandica, Senna marilandica, wild senna - North American perennial herb; leaves are used medicinally; sometimes placed in genus Cassia