Senna is a large genus of flowering plant in the legume family Fabaceae, and the subfamily Caesalpinioideae. The Senna is adapted to many climates types

Senna includes shrubs and trees.  The leaves are pinnate with an opposite paired petal. The inflorescences are bunches at the ends of branches or relievo from the leaf axils. The flower has five sepals and five usually yellow leaves. There are ten straight androecia. The stamens may be many sizes, and some have staminodes. The fruits are a legume pod containing several seeds. Senna has an FDA-approved

Senna fruits seem to be gentler than Senna leaf. This has led the American herbal products association (AHPA) to warn against long-term use of Senna leaf and also fruits.