Carissa grandiflora vs natal plum

Carissa grandiflora and natal plum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Carissa grandiflora	Yes	No	No	No
natal plum	Yes	No	No	No

As nouns, Carissa grandiflora and natal plum are synonyms defined as:

Carissa grandiflora and natal plum: very large closely branched South African shrub having forked bright green spines and shiny leaves

Other synonyms of Carissa grandiflora include amatungulu, Carissa macrocarpa.

Carissa grandiflora (noun)	natal plum (noun)
very large closely branched South African shrub having forked bright green spines and shiny leaves	edible scarlet plumlike fruit of a South African plant
	very large closely branched South African shrub having forked bright green spines and shiny leaves
	South African shrub having forked spines and plumlike fruit; frequently used as hedging