Sambucus pubens vs American red elder

Sambucus pubens and American red elder both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sambucus pubens	Yes	No	No	No
American red elder	Yes	No	No	No

As nouns, Sambucus pubens and American red elder are synonyms defined as:

Sambucus pubens and American red elder: common North American shrub or small tree

Other synonyms of Sambucus pubens include red-berried elder, stinking elder.

Sambucus pubens (noun)	American red elder (noun)
common North American shrub or small tree	common North American shrub or small tree