Nouns

(n)yam bean, potato bean, Pachyrhizus tuberosustwining plant of Amazon basin having large edible roots
(n)groundnut, groundnut vine, Indian potato, potato bean, wild bean, Apios americana, Apios tuberosaa North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans
(n)groundnut, potato bean, wild beannutlike tuber; important food of Native Americans