While the coast lands are either densely forested or covered with savannas or park-like country, the Futa Jallon tableland is mainly covered with short herbage.
On the east, the main cordillera abuts upon the region of plateaus and savannas, which occupies nearly half of the area of Nicaragua.
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 are gigantic baobab trees.
Panicum, a very polymorphic genus, and one of the largest in the order, is widely spread in all warm countries; together with species of Paspalum they form good forage grasses in the South American savannas and campos.
Grasses also characterize steppes and savannas, where they form scattered tufts.
It is extensively distributed in the tropical parts of South and Central America, frequenting low swampy savannas, along the banks of rivers, and the depths of the humid forests, but is nowhere abundant.