rush family vs family Juncaceae

rush family and family Juncaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
rush family	Yes	No	No	No
family Juncaceae	Yes	No	No	No

As nouns, rush family and family Juncaceae are synonyms defined as:

rush family and family Juncaceae: tufted herbs resembling grasses: rushes

Other synonyms of rush family include Juncaceae.

rush family (noun)	family Juncaceae (noun)
tufted herbs resembling grasses: rushes	tufted herbs resembling grasses: rushes