red dogwood vs common European dogwood

red dogwood and common European dogwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
red dogwood	Yes	No	No	No
common European dogwood	Yes	No	No	No

As nouns, red dogwood and common European dogwood are synonyms defined as:

red dogwood and common European dogwood: European deciduous shrub turning red in autumn having dull white flowers

Other synonyms of red dogwood include blood-twig, Cornus sanguinea, pedwood.

red dogwood (noun)	common European dogwood (noun)
common North American shrub with reddish purple twigs and white flowers	European deciduous shrub turning red in autumn having dull white flowers
European deciduous shrub turning red in autumn having dull white flowers