Purple Bush-Bean (Macroptilium atropurpureum)

Macroptilium atropurpureum, commonly known as siratro or purple bush-bean, is a perennial climbing legume in the Fabaceae family. Native to Central and South America, it is widely cultivated in tropical and subtropical regions as a cover crop, forage plant, and soil-improving legume due to its nitrogen-fixing ability. Traditionally, it has been valued for soil conservation, erosion control, and as high-protein fodder for livestock. With its agricultural, ecological, and soil-enriching significance, Macroptilium atropurpureum remains an important species in sustainable farming, agroforestry, and pasture management.