Lotus tetragonolobus, synonym Tetragonolobus purpureus, known as asparagus-pea or winged pea, is an annual herb native to the warm temperate regions of the Old World. It is low growing, and produces a profusion of prominent deep red flowers, followed by seed pods that are longitudinally winged.

It is cultivated for its edible green seed pods, which are one of the vegetables known as asparagus pea or winged pea. |Wikipédia|