black cherry vs black cherry tree

black cherry and black cherry tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
black cherry	Yes	No	No	No
black cherry tree	Yes	No	No	No

As nouns, black cherry and black cherry tree are synonyms defined as:

black cherry and black cherry tree: large North American wild cherry with round black sour edible fruit

Other synonyms of black cherry include Prunus serotina, rum cherry.

black cherry (noun)	black cherry tree (noun)
any of several fruits of cultivated cherry trees that have sweet flesh	large North American wild cherry with round black sour edible fruit
large North American wild cherry with round black sour edible fruit