baby rose vs Rosa multiflora

baby rose and Rosa multiflora both are nouns.

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

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

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

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

baby rose (noun)	Rosa multiflora (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