family Asteraceae vs genus Gaillardia

family Asteraceae and genus Gaillardia both are nouns.

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

family Asteraceae (noun)	genus Gaillardia (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of western American hairy herbs with showy flowers