common barberry vs European barberry

common barberry and European barberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
common barberry	Yes	No	No	No
European barberry	Yes	No	No	No

As nouns, common barberry and European barberry are synonyms defined as:

common barberry and European barberry: upright deciduous European shrub widely naturalized in United States having clusters of juicy berries

Other synonyms of common barberry include Berberis vulgaris.

common barberry (noun)	European barberry (noun)
upright deciduous European shrub widely naturalized in United States having clusters of juicy berries	upright deciduous European shrub widely naturalized in United States having clusters of juicy berries