Llanos
During the rainy season, parts of the Llanos can flood.  The flood water can be a meter deep. Then the savannass and grasslands become wetlands.  They become like the Pantanal of central South America. Water birds and other animals come to live in the flooded Llanos. The Llanos that flood are called llano bajo.  The Llanos bajos have soil with more food chemicals in them, so different plants grow there, for example the grass Paspalum fasciculatum and the trees Copernicia tectorum and gallery forest trees.