diapensia family vs family Diapensiaceae

diapensia family and family Diapensiaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
diapensia family	Yes	No	No	No
family Diapensiaceae	Yes	No	No	No

As nouns, diapensia family and family Diapensiaceae are synonyms defined as:

diapensia family and family Diapensiaceae: north temperate low evergreen plants; in some classifications placed in its own order Diapensiales

Other synonyms of diapensia family include Diapensiaceae.

diapensia family (noun)	family Diapensiaceae (noun)
north temperate low evergreen plants; in some classifications placed in its own order Diapensiales	north temperate low evergreen plants; in some classifications placed in its own order Diapensiales