The Collaborative International Dictionary
Psophocarpus tetragonolobus
manila bean \manila bean\ n. A tuberous-rooted twining annual vine ( Psophocarpus tetragonolobus) bearing clusters of purplish flowers and pods with four jagged wings; Old World tropics.
Syn: winged bean, winged pea, goa bean, goa bean vine, Psophocarpus tetragonolobus.