red dogwood vs blood-twig

red dogwood and blood-twig both are nouns.

Word	Noun	Adjective	Verb	Adverb
red dogwood	Yes	No	No	No
blood-twig	Yes	No	No	No

As nouns, red dogwood and blood-twig are synonyms defined as:

red dogwood and blood-twig: European deciduous shrub turning red in autumn having dull white flowers

Other synonyms of red dogwood include common European dogwood, Cornus sanguinea, pedwood.

red dogwood (noun)	blood-twig (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