This large, semi-arid region, primarily situated on the Deccan Plateau, is characterised by sparsely vegetated, thorn forest or savanna like forests. The ecoregion has a complex and diverse geological history influencing the unique formations in the region. Strong edaphic factors, a low rainfall and harsh climate has resulted in a specialised diverse group of plants and animals adapted to the rocky outcrops and hill ranges and the various basins and biogeographic regions of the scrub ecosystem. This region houses the floodplains and basins of most of the major rivers of peninsular India. This area is considered one of the most ancient geological landscapes with a rich biological and cultural history.