A young cassava plant (dwa in Nafaanra) growing in an intercropped field. Manihot esculenta was introduced to Africa from the western hemipshere. It can be grown on soils that have been depleted of nutrients by other crops. Its cultivation requires little labor and its tubers, which provide a starchy staple, can be left in the ground for long periods. Other than as a source of calories, the tubers have little nutritional value. Cassava leaves, however, are used as vitamin- and nutrient-rich additions to soups. Lying on the ground around the cassava plant are dried maize stalks (bleju in Nafaanra) left behind from a previous planting cycle. Sabiye, 15 July, 2022.