family Myrtaceae vs myrtle family

family Myrtaceae and myrtle family both are nouns.

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

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

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

Other synonyms of family Myrtaceae include Myrtaceae.

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