water-milfoil family vs family Haloragidaceae

water-milfoil family and family Haloragidaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
water-milfoil family	Yes	No	No	No
family Haloragidaceae	Yes	No	No	No

As nouns, water-milfoil family and family Haloragidaceae are synonyms defined as:

water-milfoil family and family Haloragidaceae: a family of dicotyledonous plants of the order Myrtales

Other synonyms of water-milfoil family include family Haloragaceae, Haloragaceae, Haloragidaceae.

water-milfoil family (noun)	family Haloragidaceae (noun)
a family of dicotyledonous plants of the order Myrtales	a family of dicotyledonous plants of the order Myrtales