family Compositae vs genus Tragopogon

family Compositae and genus Tragopogon both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Compositae	Yes	No	No	No
genus Tragopogon	Yes	No	No	No

family Compositae (noun)	genus Tragopogon (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of Old World herbs with linear entire leaves and yellow or purple flower heads