Persian cat vs Felis catus

Persian cat and Felis catus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Persian cat	Yes	No	No	No
Felis catus	Yes	No	No	No

As nouns, Felis catus is a hypernym of Persian cat; that is, Felis catus is a word with a broader meaning than Persian cat:

Other hypernyms of Persian cat include domestic cat, Felis domesticus, house cat.

Persian cat (noun)	Felis catus (noun)
a long-haired breed of cat	any domesticated member of the genus Felis