family Asteraceae vs genus Achillea

family Asteraceae and genus Achillea both are nouns.

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

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