DICT.TW Dictionary Taiwan

 yam bean
      n 1: twining plant of Amazon basin having large edible roots
           [syn: potato bean, Pachyrhizus tuberosus]
      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 [syn: Pachyrhizus erosus]