family Compositae vs Leucanthemum

family Compositae and Leucanthemum both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Compositae	Yes	No	No	No
Leucanthemum	Yes	No	No	No

family Compositae (noun)	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)