oxalis crenata(n = noun.plant) oca, oka, oxalis tuberosa - South American wood sorrel cultivated for its edible tubers;
is a kind of oxalis, sorrel, wood sorrel

ardisia crenata, castanea crenata, creeping oxalis, genus oxalis, oxalis, oxalis acetosella, oxalis caprina, oxalis cernua, oxalis corniculata, oxalis pes-caprae, oxalis tuberosa, oxalis violacea