family Asteraceae vs genus Leucanthemum

family Asteraceae and genus Leucanthemum both are nouns.

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

family Asteraceae (noun)	genus Leucanthemum (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	comprises plants often included in the genus Chrysanthemum, mainly distributed in southern and central Europe (Leucanthemum)