Dovyalis caffra is a species of fruit tree commonly found in southern Africa. Known for its edible fruit, which is tart and high in vitamin C, this tree is also referred to by a number of different names. Some of the synonyms for Dovyalis caffra include the kei apple, umkokolo, and kougoed. In addition, it is sometimes called the sourberry bush or the Natal plum. Regardless of its name, however, Dovyalis caffra remains an important source of food and nutrition for many people in southern Africa, and is also prized for its ornamental value in landscaping applications.