Grasses also characterize steppes and savannas, where they form scattered tufts.
In the savannas are gigantic baobab trees.
The rainfall, which also has an important bearing upor the culture of peoples, will be found on the whole to be greatest in the third zone and also in the eastern highlands, and of course least in the desert, the steppes and savannas standing midway between the two.
The wooded savannas are mostly situated on the higher lands of the central zone, where the land dips down from the Mitumba Mountains to the Congo.
In the savannas the most characteristic trees are the monkey bread tree or baobab (Adansonia digitata), doom palm (Hyphaene) and euphorbias.