Ambrosiaceae vs family Asteraceae

Ambrosiaceae and family Asteraceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ambrosiaceae	Yes	No	No	No
family Asteraceae	Yes	No	No	No

Ambrosiaceae (noun)	family Asteraceae (noun)
in some classifications considered a separate family comprising a subgroup of the Compositae including the ragweeds	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia