aster family vs family Compositae

aster family and family Compositae both are nouns.

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

As nouns, aster family and family Compositae are synonyms defined as:

aster family and family Compositae: plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia

Other synonyms of aster family include Asteraceae, Compositae, family Asteraceae.

aster family (noun)	family Compositae (noun)
plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia