Cynodon vs Poaceae

Cynodon and Poaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cynodon	Yes	No	No	No
Poaceae	Yes	No	No	No

Cynodon (noun)	Poaceae (noun)
creeping perennial grasses of tropical and southern Africa	the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane