aster family vs genus Erechtites

aster family and genus Erechtites both are nouns.

Word	Noun	Adjective	Verb	Adverb
aster family	Yes	No	No	No
genus Erechtites	Yes	No	No	No

aster family (noun)	genus Erechtites (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	coarse herbs with whitish discoid flower heads and silky pappus