morello vs Prunus cerasus

morello and Prunus cerasus both are nouns.

Word	Noun	Adjective	Verb	Adverb
morello	Yes	No	No	No
Prunus cerasus	Yes	No	No	No

As nouns, Prunus cerasus is a hypernym of morello; that is, Prunus cerasus is a word with a broader meaning than morello:

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

Other hypernyms of morello include sour cherry, sour cherry tree.

morello (noun)	Prunus cerasus (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