family Rosaceae vs Rosaceae

family Rosaceae and Rosaceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Rosaceae	Yes	No	No	No
Rosaceae	Yes	No	No	No

As nouns, family Rosaceae and Rosaceae are synonyms defined as:

family Rosaceae and Rosaceae: a large family of dicotyledonous plants of order Rosales; have alternate leaves and five-petaled flowers with numerous stamens

Other synonyms of family Rosaceae include rose family.

family Rosaceae (noun)	Rosaceae (noun)
a large family of dicotyledonous plants of order Rosales; have alternate leaves and five-petaled flowers with numerous stamens	a large family of dicotyledonous plants of order Rosales; have alternate leaves and five-petaled flowers with numerous stamens