European elder vs black elder

European elder and black elder both are nouns.

Word	Noun	Adjective	Verb	Adverb
European elder	Yes	No	No	No
black elder	Yes	No	No	No

As nouns, European elder and black elder are synonyms defined as:

European elder and black elder: a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies

Other synonyms of European elder include bourtree, common elder, elderberry, Sambucus nigra.

European elder (noun)	black elder (noun)
a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies	a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies