family Asteraceae vs genus Packera

family Asteraceae and genus Packera both are nouns.

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

family Asteraceae (noun)	genus Packera (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of American of east Asian perennial herbs with yellow to orange or red flower rays; sometimes included in genus Senecio