Tacca involucrata, Sch. & Thonn. Nigeria: the Munshi first boil the tuber to remove the toxic element. A coarse flour, called amara, is prepared from it. Among the Adamawa Fulani, the same coarse flour, along with prepared cereal flour, is brought by a bride to her new home, as an indication of her ability as a housewife. Ref. IRVINE.