Definition
The kei apple (Dovyalis caffra) is a spiny shrub or small tree native to southern Africa. It's known for its bright orange, edible fruits, which are quite tart when eaten raw. Picture a sour apricot. It is often used to make jams, jellies, and hedges. The spiny nature of the plant makes it a good security barrier. It is a tangy fruit with a prickly personality.