asparagus bean, yard-long bean, Vigna unguiculata sesquipedalis, Vigna sesquipedalis

South American bean having very long succulent pods

• legume, leguminous plant — an erect or climbing bean or pea plant of the family Leguminosae

• Vigna, genus Vigna — genus of vines or erect herbs having trifoliate leaves and yellowish or purplish flowers; of warm or tropical regions; most species often placed in genus Phaseolus