High Quality Content by WIKIPEDIA articles Caatinga (Portuguese pronunciation: ) is a type of vegetation, and an ecoregion characterized by this vegetation in the northeastern part of Brazil. The name "Caatinga" is a Tupi word meaning "white forest" or "white vegetation" (kaa = forest, vegetation, t nga = white). It covers between 700,000 km and 1,000,000 km (depending on the source), over 10% of the Brazil's territory.