Gramineae vs family Graminaceae

Gramineae and family Graminaceae both are nouns.

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

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

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

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

Gramineae (noun)	family Graminaceae (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