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(family Fabaceae, subfamily Caesalpinoideae)

A genus of small to medium-sized trees in which the leaves are pinnate. The flowers are slightly zygomorphic and showy. Several species are widely grown as ornamentals. The purgative senna is prepared from the leaves. There are 535 species, occurring in tropical to warm temperate regions.

Subjects: Medicine and Health — Plant Sciences and Forestry.

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