Dovyalis afra

Dovyalis afra, commonly known as the Kei apple, is a small to medium-sized tree, native to southern Africa. Its distribution extends from the Kei River in the south, from which the common name derives, northwards along the eastern side of the continent to Tanzania. The ripe fruits (which are present from December to January) are edible and similar in appearance to apricots, though they are quite acidic due to having a high concentration of malic acid. It is a usually found in dry types of woodland when it grows to 6 m tall. In moister types of open woodland it reaches its greatest size of about 8–9 metres. A tree, with sharp, 3–6 cm long stem spines in the leaf axils, and large sturdy thorns. Buds at the base of the spine produce clusters of alternately arranged simple ovate leaves 3–6 cm long. The flowers are inconspicuous, solitary or clustered, with no petals. It is dioecious, with male and female flowers on separate plants, though some female plants are parthenogenetic. The fruit ......read more on Wikipedia.