family Graminaceae vs Poaceae

family Graminaceae and Poaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Graminaceae	Yes	No	No	No
Poaceae	Yes	No	No	No

As nouns, family Graminaceae and Poaceae are synonyms defined as:

family Graminaceae and Poaceae: the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane

Other synonyms of family Graminaceae include family Gramineae, family Poaceae, Graminaceae, Gramineae, grass family.

family Graminaceae (noun)	Poaceae (noun)
the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane	the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane