The edible red plumlike fruit of Carissa macrocarpa (family Apocynaceae), a spiny evergreen shrub or small tree of south-eastern Africa, which bears white tubular fragrant flowers; the shrub itself.
Origin
Mid 19th century.
Definition of Natal plum in US English:
Natal plum
noun
The edible red plumlike fruit of Carissa macrocarpa (family Apocynaceae), a spiny evergreen shrub or small tree of south-eastern Africa, which bears white tubular fragrant flowers; the shrub itself.