Paris vs genus Paris

Paris and genus Paris both are nouns.

Word	Noun	Adjective	Verb	Adverb
Paris	Yes	No	No	No
genus Paris	Yes	No	No	No

As nouns, Paris and genus Paris are synonyms defined as:

Paris (noun)	genus Paris (noun)
the capital and largest city of France; and international center of culture and commerce	sometimes placed in subfamily Trilliaceae
a town in northeastern Texas
(Greek mythology) the prince of Troy who abducted Helen from her husband Menelaus and provoked the Trojan War
sometimes placed in subfamily Trilliaceae