genus Grindelia vs Asteraceae

genus Grindelia and Asteraceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Grindelia	Yes	No	No	No
Asteraceae	Yes	No	No	No

genus Grindelia (noun)	Asteraceae (noun)
large genus of coarse gummy herbs of western North and Central America	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia