Original: The most prevalent biome in South Africa is the grassland, particularly on the Highveld, where the plant cover is dominated by different grasses, low shrubs, and acacia trees, mainly camel-thorn and whitethorn.
Simplified: The most common biome in South Africa is the grassland, mostly on the Highveld. This is where grasses, low shrubs, and acacia trees, mostly camel-thorn and whitethorn are more common then plants.