Sambucus nigra vs black elder

Sambucus nigra and black elder both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sambucus nigra	Yes	No	No	No
black elder	Yes	No	No	No

As nouns, Sambucus nigra and black elder are synonyms defined as:

Sambucus nigra 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 Sambucus nigra include bourtree, common elder, elderberry, European elder.

Sambucus nigra (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