order Xyridales vs yellow-eyed grass family

order Xyridales and yellow-eyed grass family both are nouns.

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

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