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Macroptilium atropurpureum (DC.) Urb. belongs to the Fabaceae family and is known for its dense, green vines and deep purple flowers. It is native to tropical and subtropical regions of North, Central, and South America, including areas as far north as Texas and as far south as Brazil. The plant has been introduced for livestock feed in many tropical regions. It is rich in protein and is used in cattle pastures, often intercropped with grass, in hay, or as a ground cover to prevent soil erosion and improve soil quality. However, it has become an invasive species in some areas, including the northeastern coast of Australia. The plant is found in various locations, including BR, Vía Parque Isla de Salamanca, Parque Nacional Natural Sumapaz, TW, VU, ZA, SC, CK, NU, WS, PW, AI, BI, KI, Núcleo CI Tequendama, KM, VN, SG, Rionegro, Zapatoca, WF, and ZW. It was first published in 1928.