family Compositae vs genus Antennaria

family Compositae and genus Antennaria both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Compositae	Yes	No	No	No
genus Antennaria	Yes	No	No	No

family Compositae (noun)	genus Antennaria (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	small woolly perennial herbs having small whitish discoid flowers surrounded by a ring of club-shaped bristles