Prunus capuli vs cherry tree

Prunus capuli and cherry tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
Prunus capuli	Yes	No	No	No
cherry tree	Yes	No	No	No

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

Prunus capuli: Mexican black cherry tree having edible fruit
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 Prunus capuli include cherry.

Prunus capuli (noun)	cherry tree (noun)
Mexican black cherry tree having edible fruit	any of numerous trees and shrubs producing a small fleshy round fruit with a single hard stone; many also produce a valuable hardwood