elderberry vs American elder

elderberry and American elder both are nouns.

Word	Noun	Adjective	Verb	Adverb
elderberry	Yes	No	No	No
American elder	Yes	No	No	No

elderberry (noun)	American elder (noun)
berrylike fruit of an elder used for e.g. wines and jellies	common elder of central and eastern North America bearing purple-black berries; fruit used in wines and jellies
a common shrub with black fruit or a small tree of Europe and Asia; fruit used for wines and jellies