sweet elder vs Sambucus canadensis

sweet elder and Sambucus canadensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet elder	Yes	No	No	No
Sambucus canadensis	Yes	No	No	No

As nouns, sweet elder and Sambucus canadensis are synonyms defined as:

sweet elder and Sambucus canadensis: common elder of central and eastern North America bearing purple-black berries; fruit used in wines and jellies

Other synonyms of sweet elder include American elder, black elderberry.

sweet elder (noun)	Sambucus canadensis (noun)
common elder of central and eastern North America bearing purple-black berries; fruit used in wines and jellies	common elder of central and eastern North America bearing purple-black berries; fruit used in wines and jellies