四棱豆(psophocarpus tetragonolobns L.)又名翼豆,属缠绕性一年生或多年生草本植物。可作粮食、油料、饲料、绿肥和药用,人称“绿色的金子”。它在热带地区栽培历史悠久,传播和发展很快。现在非洲,南美洲,亚洲以及太平洋南部均有栽培。在 Bean (psophocarpus tetragonolobns L.), also known as wing beans, is a winding annual or perennial herb. For food, fuel, feed, green manure and medicinal, known as “green gold.” It has a long history of cultivation in the tropics, spreading and developing rapidly. It is now cultivated in Africa, South America, Asia and the southern Pacific. in