wild cherry vs cherry tree

wild cherry and cherry tree both are nouns.

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

As nouns, cherry tree is a hypernym of wild cherry; that is, cherry tree is a word with a broader meaning than wild cherry:

wild cherry: an uncultivated cherry tree
cherry tree: any of numerous trees and shrubs producing a small fleshy round fruit with a single hard stone; many also produce a valuable hardwood

Other hypernyms of wild cherry include cherry.

wild cherry (noun)	cherry tree (noun)
an uncultivated cherry tree	any of numerous trees and shrubs producing a small fleshy round fruit with a single hard stone; many also produce a valuable hardwood
the fruit of the wild cherry tree