everlasting flower vs family Compositae

everlasting flower and family Compositae both are nouns.

Word	Noun	Adjective	Verb	Adverb
everlasting flower	Yes	No	No	No
family Compositae	Yes	No	No	No

everlasting flower (noun)	family Compositae (noun)
any of various plants of various genera of the family Compositae having flowers that can be dried without loss of form or color	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia