myrtle family vs family Myrtaceae

myrtle family and family Myrtaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
myrtle family	Yes	No	No	No
family Myrtaceae	Yes	No	No	No

As nouns, myrtle family and family Myrtaceae are synonyms defined as:

myrtle family and family Myrtaceae: trees and shrubs yielding a fragrant oil

Other synonyms of myrtle family include Myrtaceae.

myrtle family (noun)	family Myrtaceae (noun)
trees and shrubs yielding a fragrant oil	trees and shrubs yielding a fragrant oil