-Plants (Kingdom Plantae)

-Vascular Plants (Phylum Tracheophyta)

-Flowering Plants (Subphylum Angiospermae)

-Dicots (Class Magnoliopsida)

-Legumes, Milkworts, and Allies (Order Fabales)

-Legumes (Family Fabaceae)

-Subfamily Faboideae

-Tribe Phaseoleae

-Subtribe Phaseolinae

-Bushbeans (Genus Macroptilium)

-Purple Bush-Bean (Macroptilium atropurpureum)

Macroptilium atropurpureum is a perennial herb widely cultivated across tropical and subtropical regions of the world as a forage crop, a soil and pasture improver and for ground cover. It is native to tropical America. It can form dense stands along forest margins and can also smother native shrubs, grasses and young trees. Flowers are typically deep purple with reddish tinge near base.