marasca vs Prunus cerasus

marasca and Prunus cerasus both are nouns.

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

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

marasca: Dalmatian bitter wild cherry tree bearing fruit whose juice is made into maraschino liqueur
Prunus cerasus: rather small Eurasian tree producing red to black acid edible fruit

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

marasca (noun)	Prunus cerasus (noun)
Dalmatian bitter wild cherry tree bearing fruit whose juice is made into maraschino liqueur	rather small Eurasian tree producing red to black acid edible fruit
small bitter fruit of the marasca cherry tree from whose juice maraschino liqueur is made