redbrush vs red osier dogwood

redbrush and red osier dogwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
redbrush	Yes	No	No	No
red osier dogwood	Yes	No	No	No

As nouns, redbrush and red osier dogwood are synonyms defined as:

redbrush and red osier dogwood: common North American shrub with reddish purple twigs and white flowers

Other synonyms of redbrush include American dogwood, Cornus stolonifera, red dogwood, red osier.

redbrush (noun)	red osier dogwood (noun)
common North American shrub with reddish purple twigs and white flowers	common North American shrub with reddish purple twigs and white flowers