family Asteraceae vs genus Chamaemelum

family Asteraceae and genus Chamaemelum both are nouns.

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

family Asteraceae (noun)	genus Chamaemelum (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	small genus of plants sometimes included in genus Anthemis: chamomile