morello vs sour cherry tree

morello and sour cherry tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
morello	Yes	No	No	No
sour cherry tree	Yes	No	No	No

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

morello: any of several cultivated sour cherry trees bearing fruit with dark skin and juice
sour cherry tree: rather small Eurasian tree producing red to black acid edible fruit

Other hypernyms of morello include Prunus cerasus, sour cherry.

morello (noun)	sour cherry tree (noun)
cultivated sour cherry with dark-colored skin and juice	rather small Eurasian tree producing red to black acid edible fruit
any of several cultivated sour cherry trees bearing fruit with dark skin and juice