bristly locust vs Robinia hispida

bristly locust and Robinia hispida both are nouns.

Word	Noun	Adjective	Verb	Adverb
bristly locust	Yes	No	No	No
Robinia hispida	Yes	No	No	No

As nouns, bristly locust and Robinia hispida are synonyms defined as:

bristly locust and Robinia hispida: 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, rose acacia.

bristly locust (noun)	Robinia hispida (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