genus Mucuna ge·nus·mu·cuna uncommon noun 1. genus of tropical herbs and woody vines having trifoliate leaves and showy flowers in axillary clusters Synonymsgenus MucunaStizolobiumgenus Stizolobium Related words Broader terms rosid dicot genus Parts Papilionoideae Part of mucuna WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.