Synonyms for Yam Bean (same or very similar meaning)
WordNet sense 1 (twining plant of Amazon basin having large edible roots):
Pachyrhizus tuberosus, potato bean
WordNet sense 2 (Central American twining plant with edible roots and pods; large tubers are eaten raw or cooked especially when young and young pods must be thoroughly cooked; pods and seeds also yield rotenone and oils):
Pachyrhizus erosus
From the ODE community, based on WordNet
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