family Compositae vs genus Boltonia

family Compositae and genus Boltonia both are nouns.

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

family Compositae (noun)	genus Boltonia (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of tall leafy perennial herbs of eastern America and eastern Asia having flowers that resemble asters