running blackberry vs dewberry bush

running blackberry and dewberry bush both are nouns.

Word	Noun	Adjective	Verb	Adverb
running blackberry	Yes	No	No	No
dewberry bush	Yes	No	No	No

As nouns, running blackberry and dewberry bush are synonyms defined as:

running blackberry and dewberry bush: any of several trailing blackberry brambles especially of North America

Other synonyms of running blackberry include dewberry.

running blackberry (noun)	dewberry bush (noun)
any of several trailing blackberry brambles especially of North America	any of several trailing blackberry brambles especially of North America