family Asteraceae vs genus Pulicaria

family Asteraceae and genus Pulicaria both are nouns.

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

family Asteraceae (noun)	genus Pulicaria (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	genus of temperate Old World herbs: fleabane