What is "carissa bispinosa"

Natal plum \Na*tal" plum`\

1. (Bot.) The drupaceous fruit of two South African shrubs of the genus Carissa (formerly Arduina) ( Carissa bispinosa and Carissa grandiflora). It is also called amatungulu.

2. the shrub bearing the natal plum[1]; a very large closely branched South African shrub ( Carissa grandiflora) of the dogbane family having forked bright green spines, white flowers, shiny leaves, and red berries.

Carissa bispinosa grows as a shrub or small tree up to tall. Its fragrant flowers feature a white corolla. Fruit is red when ripe. Habitat is woodland and forest from to altitude. Vernacular names for the plant include "forest num-num" and "Y-thorned carissa". C. bispinosa is native to Malawi, Zimbabwe, Mozambique, Swaziland and South Africa.