kei apple vs kei apple bush

kei apple and kei apple bush both are nouns.

Word	Noun	Adjective	Verb	Adverb
kei apple	Yes	No	No	No
kei apple bush	Yes	No	No	No

As nouns, kei apple and kei apple bush are synonyms defined as:

kei apple and kei apple bush: vigorous South African spiny shrub grown for its round yellow juicy edible fruits

Other synonyms of kei apple include Dovyalis caffra.

kei apple (noun)	kei apple bush (noun)
vigorous South African spiny shrub grown for its round yellow juicy edible fruits	vigorous South African spiny shrub grown for its round yellow juicy edible fruits