stinking elder vs Sambucus pubens

stinking elder and Sambucus pubens both are nouns.

Word	Noun	Adjective	Verb	Adverb
stinking elder	Yes	No	No	No
Sambucus pubens	Yes	No	No	No

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

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

Other synonyms of stinking elder include American red elder, red-berried elder.

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