East and South Asia. Mature seeds can command a high price. As animal feed Winged bean is a potential food source for ruminants, poultry, fish, and other livestock. For commercial fish feed, winged bean is a potentially lower-cost protein source. In Africa, fish meal is especially scarce and expensive. The African sharptooth catfish, a highly valued food fish in Africa, can eat winged bean. In Papua New Guinea highlands region where winged beans thrive, the husks are fed to the domesticated pigs as a dietary supplement. See also Green bean Water spinach Yardlong bean Notes Sources National Research Council. The winged bean : a high-protein crop for the tropics : report of an ad hoc panel of the Advisory Committee on Technology Innovation. Board on Science and Technology for International Development, 1981 Further reading Venketeswaran, S., M.A.D.L. Dias, and U.V. Weyers. The winged bean: A potential protein crop. p. 445. In: J. Janick and J.E. Simon (eds.), Advances in new crops. Timber Press, Portland, OR (1990). Entry for the Winged Bean in the "Leaf for Life" website Hettiarachchy, N.S. and Sri Kantha, S. Nutritive value of winged bean, Psophocarpus tetragonolobus. Nutrisyon (Philippines), 1982; 7: 40–51. Sri Kantha, S. and Erdman, J.W.Jr. Winged bean as an oil and protein source; a review. Journal of American Oil Chemists Society, 1984; 61: 215–225. Sri Kantha, S. and Erdman, J.W.Jr. Is winged bean really a flop? Ecology of Food and Nutrition, 1986; 18: 339–341. National Research Council (U.S). (1975). Underexploited Tropical Plants with Promising Economic Value. 2nd Edition. U.S. National Academies. G. J. H. Grubben. (2004). Vegetables: Volume 2 of Plant Resources of Tropical Africa. PROTA Village Earth. (2011). Appropriate Technology: Sustainable Agriculture. Appropriate Technology Library. Chapter: Tropical Legumes Yang, J., Tan, H. (2011). Winged Bean Milk. International Conference on New Technology of Agricultural, May 2011, 814–817. Khan, T. Winged Bean Production in the Tropics. Food and Agriculture Organization of the United Nations, 1982 Fagbenro, A. (1999). Comparative evaluation of heat-processed Winged bean Psophocarpus tetragonolobus meals as partial replacement for fish meal in diets for the African catfish Clarias gariepinus. Aquaculture 170 (1999), 297–305. Crops originating from Asia Edible legumes Leaf vegetables Phaseoleae Pod vegetables Root vegetables Tropical agriculture Nitrogen-fixing crops