Zygotritonia bongensis

It is locally known as baka among the Yoruba people of Western Nigeria and it used by their traditional healers to treat diarrhea and dysentery.

[2] Other names of the herb include Zygotritonia crocea (stapf).

A perennial herb, it has underground stems like corms, 15-25 mm in diameter.

One to three leaves, lanceolate, plicate with three to six major veins, the largest, usually the lowermost is between 15 - 40 mm wide, the uppermost is longest, ranges 5 - 12 cm long.

[3] Native to West Tropical Africa, found in Nigeria, Ghana, Chad, Central African Republic, Benin and the Democratic Republic of Congo.