Before revision: Hoodia cactus The Hoodia cactus of the Kalahari Desert was used for thousands of years by the nomadic San people in southern Africa to help survive through hunger and thirst during their long expeditions in the desert.
After revision: Hoodia The Hoodia plant of the Kalahari Desert was used for thousands of years by the nomadic San people in southern Africa to help survive through hunger and thirst during their long expeditions in the desert.