family Asteraceae vs genus Boltonia

family Asteraceae and genus Boltonia both are nouns.

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

family Asteraceae (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