jujube vs jujube bush

jujube and jujube bush both are nouns.

Word	Noun	Adjective	Verb	Adverb
jujube	Yes	No	No	No
jujube bush	Yes	No	No	No

As nouns, jujube and jujube bush are synonyms defined as:

Other synonyms of jujube include Christ's-thorn, Jerusalem thorn, Ziziphus jujuba.

jujube (noun)	jujube bush (noun)
chewy fruit-flavored jellied candy (sometimes medicated to soothe a sore throat)	spiny tree having dark red edible fruits
dark red plumlike fruit of Old World buckthorn trees
spiny tree having dark red edible fruits