genus Achillea vs family Compositae

genus Achillea and family Compositae both are nouns.

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

genus Achillea (noun)	family Compositae (noun)
perennial often aromatic and sometimes mat-forming herbs of north temperate regions: yarrow; milfoil	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia