Lesotho's flora is Alpine, due to the high and mountainous terrain. The Katse Botanical Gardens houses a collection of medicinal plants and has a large seed bank of plants from the Malibamat'so River area. Three terrestrial ecoregions lie within Lesotho's boundaries: Drakensberg alti-montane grasslands and woodlands, Drakensberg montane grasslands, and Highveld grasslands.