tribe Bambuseae vs grass family

tribe Bambuseae and grass family both are nouns.

Word	Noun	Adjective	Verb	Adverb
tribe Bambuseae	Yes	No	No	No
grass family	Yes	No	No	No

tribe Bambuseae (noun)	grass family (noun)
bamboos	the grasses: chiefly herbaceous but some woody plants including cereals, bamboo, reeds, sugar cane