Gramineae vs liliopsid family

Gramineae and liliopsid family both are nouns.

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

As nouns, liliopsid family is a hypernym of Gramineae; that is, liliopsid family is a word with a broader meaning than Gramineae:

Gramineae: the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane
liliopsid family: family of flowering plants having a single cotyledon (embryonic leaf) in the seed

Other hypernyms of Gramineae include monocot family.

Gramineae (noun)	liliopsid family (noun)
the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane	family of flowering plants having a single cotyledon (embryonic leaf) in the seed