yellow-eyed grass family vs Commelinales

yellow-eyed grass family and Commelinales both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow-eyed grass family	Yes	No	No	No
Commelinales	Yes	No	No	No

yellow-eyed grass family (noun)	Commelinales (noun)
plants of tropical to temperate regions; usually in wet places	an order of monocotyledonous herbs