mustard family vs family Brassicaceae

mustard family and family Brassicaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
mustard family	Yes	No	No	No
family Brassicaceae	Yes	No	No	No

As nouns, mustard family and family Brassicaceae are synonyms defined as:

mustard family and family Brassicaceae: a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives

Other synonyms of mustard family include Brassicaceae, Cruciferae, family Cruciferae.

mustard family (noun)	family Brassicaceae (noun)
a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives	a large family of plants with four-petaled flowers; includes mustards, cabbages, broccoli, turnips, cresses, and their many relatives