Calopogonium mucunoides is a short-lived, vigorous, creeping, twining or trailing herb, that can send out stems up to several metres long and form a tangled mass of foliage 30 - 50 cm deep. C. mucunoides is native to tropical America, from Mexico to Argentina, and to some islands in the West Indies. t is especially common in disturbed areas, forest edges, along roadsides and waterways and in agricultural lands where it grows as a weed.