Inner Niger Delta
The inundated Lake Débo and Walado Débo (Inner Niger Delta in Mali) form the pasture lands which are collectively known as the flooded forest savannah with aquatic herbaceous and two dominant species of acacia. These pastures are known locally as "bourgou" grass. Palms like "Hyphaene thebaica", and "Borassus aethiopum" are also reported on the fringes of the lake.