bristly locust vs rose acacia

bristly locust and rose acacia both are nouns.

Word	Noun	Adjective	Verb	Adverb
bristly locust	Yes	No	No	No
rose acacia	Yes	No	No	No

As nouns, bristly locust and rose acacia are synonyms defined as:

bristly locust and rose acacia: large shrub or small tree of the eastern United States having bristly stems and large clusters of pink flowers

Other synonyms of bristly locust include moss locust, Robinia hispida.

bristly locust (noun)	rose acacia (noun)
large shrub or small tree of the eastern United States having bristly stems and large clusters of pink flowers	large shrub or small tree of the eastern United States having bristly stems and large clusters of pink flowers