The Okavango Delta enjoys a riparian environment dominated by marsh grasses, water lilies, reeds and papyrus, and is dotted with well-vegetated islands thick with palms, acacias, leadwood and sausage trees. At the other extreme, the Kalahari is characterised by all sorts of savanna, including bush savanna with acacia thorn trees, grass savanna and arid shrub savanna in the southwest.
More than 2500 species of plants and 650 species of trees have been recorded in Botswana. The country’s only deciduous mopane forests are in the north, where six forest reserves harbour stands of commercial timber, as well as both mongonga and marula trees. Also common around Botswana are camel-thorn trees, which some animals find tasty and which the San use for firewood and medicinal purposes; and motlopi trees, also called shepherd’s tree, which have edible roots.