The dense humid forests and their endemic plant species

More than 1,400 plant species including, among those endemic to West Africa, more than 100 so-called «Sassandrian» species, such as the giant tree Brachystegia leonensis or the beautiful liana Duparquetia orchidacea.
These species are located only to the west of the Sassandra River, in the most humid part of the evergreen forest, and define the floristic hotspot known as «Bas-Cavally» or «Grabo Hills» on either side of the Cavally River, a former forest refugium during drier climates.