Rosa multiflora vs Japanese rose

Rosa multiflora and Japanese rose both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rosa multiflora	Yes	No	No	No
Japanese rose	Yes	No	No	No

As nouns, Rosa multiflora and Japanese rose are synonyms defined as:

Rosa multiflora and Japanese rose: vigorously growing rose having clusters of numerous small flowers; used for hedges and as grafting stock

Other synonyms of Rosa multiflora include baby rose, multiflora, multiflora rose.

Rosa multiflora (noun)	Japanese rose (noun)
vigorously growing rose having clusters of numerous small flowers; used for hedges and as grafting stock	vigorously growing rose having clusters of numerous small flowers; used for hedges and as grafting stock