family Asteraceae vs genus Stenotus

family Asteraceae and genus Stenotus both are nouns.

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

family Asteraceae (noun)	genus Stenotus (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of western North American low evergreen shrubs growing in dense tufts