family Diapensiaceae vs diapensia family

family Diapensiaceae and diapensia family both are nouns.

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

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

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

Other synonyms of family Diapensiaceae include Diapensiaceae.

family Diapensiaceae (noun)	diapensia family (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