The vegetation of the Pantanal ecosystem is not a typical homogeneous formation but is formed by a mosaic of biomes from five neighboring regions; Amazon Forest, Atlantic Forest, Cerrado, Caatinga, and Chaco (Paraguayan, Argentine and Bolivian) and is known as the Pantanal Complex.
Recent studies point to the identification of more than 1,600 species of plants, some of which are endemic to the Pantanal.
There are different patterns of flora according to the soil and mainly with the altitude, determining factor for the degree and duration of submersion of the soil and its vegetation during the periodic floods.
The highest lands are not flooded and have vegetation of cerrado(Arid Land) or forest.
In the low fields, flooded periodically during the flood, grasses and small shrubs predominate.
In the bays, which are temporary or permanent lagoons, we find submerged or floating aquatic plants. These plants are of fundamental importance for the survival of the aquatic fauna, which in turn forms the main source of feeding of great part of terrestrial fauna.