Carissa macrocarpa vs natal plum

Carissa macrocarpa and natal plum both are nouns.

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

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

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

Other synonyms of Carissa macrocarpa include amatungulu, Carissa grandiflora.

Carissa macrocarpa (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