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Noun: potato bean  pu'tey-tow been
  1. Twining plant of Amazon basin having large edible roots
    - yam bean, Pachyrhizus tuberosus
  2. A North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans
    - groundnut, groundnut vine, Indian potato, wild bean, Apios americana, Apios tuberosa
  3. Nutlike tuber; important food of Native Americans
    - groundnut, wild bean

Derived forms: potato beans

Type of: tuber, vine

Part of: Apios, genus Apios, genus Pachyrhizus, Pachyrhizus

Encyclopedia: Potato bean