genus Dahlia vs family Asteraceae

genus Dahlia and family Asteraceae both are nouns.

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

genus Dahlia (noun)	family Asteraceae (noun)
genus of perennial tuberous plants of Mexico and Central America	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia