genus Lasthenia vs family Compositae

genus Lasthenia and family Compositae both are nouns.

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

genus Lasthenia (noun)	family Compositae (noun)
small genus of herbs of Pacific coast of North and South America	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia