Citropsis

"Citropsis" is a genus of flowering plants in the citrus family, Rutaceae.
It produces a fruit known as the African cherry orange. This a fruit common to Central and Western Africa, it is about the size of a tangerine. It is sometimes used as a herbal medicine. The fruit is two or three centimeters long.
The are a number of species, which differ in the details of their habit. The plant is a shrub or tree. With pointed leaflets, the leaves are up to 33 centimeters long. They are about two centimeters long and the inflorescence is a cluster of flowers with four white petals. The style may be 1.5 centimeters long.