Winged Bean (Psophocarpus tetragonolobus (L.) DC.)
Botanical Profile, Taxonomy, and Structural Morphology of Psophocarpus tetragonolobus (Winged Bean) Psophocarpus tetragonolobus , commonly known as the winged bean , Goa bean, or four-angled bean (දේශීයව දඹල ), is a exceptionally versatile and nutrient-dense leguminous crop native to tropical regions of Asia. Belonging to the family Leguminosae (Fabaceae) , this plant stands out among tropical crops because virtually every part of the plant—tender pods, leaves, flowers, tuberous roots, and mature seeds—is fully edible and rich in protein. Cultivated primarily as an annual vegetable for its tender, four-winged immature pods, Psophocarpus tetragonolobus is an indispensable crop for tropical home gardens and sustainable agricultural production, offering remarkable nutritional security and nitrogen-fixing capabilities. 1. Taxonomic Classification and Correct Orthography Botanically, Psophocarpus is a genus comprising nine species of twining, tuberous-rooted herbaceous ...