aster family vs genus Rudbeckia

aster family and genus Rudbeckia both are nouns.

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

aster family (noun)	genus Rudbeckia (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	North American perennial herbs with showy cone-shaped flower heads