Nigeria. Enugu State. Enugu. A smiling Igbo woman eats cocoyam for lunch. Cocoyam is a common name for more than one tropical root crop and vegetable crop belonging to the Arum family (also known as Aroids and by the family name Araceae) and may refer to Taro (old cocoyam) or Malanga (new cocoyam. Cocoyams are herbaceous perennial plants belonging to the family Araceae and are grown primarily for their edible roots, although all parts of the plant are edible. Enugu is the capital of Enugu State, located in southeastern Nigeria. 2.07.19 © 2019 Didier Ruef