family Asteraceae vs genus Echinops

family Asteraceae and genus Echinops both are nouns.

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

family Asteraceae (noun)	genus Echinops (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of Mediterranean and Eurasian herbs: globe thistles