European white birch vs silver birch

European white birch and silver birch both are nouns.

Word	Noun	Adjective	Verb	Adverb
European white birch	Yes	No	No	No
silver birch	Yes	No	No	No

As nouns, European white birch and silver birch are synonyms defined as:

European white birch and silver birch: European birch with silvery white peeling bark and markedly drooping branches

Other synonyms of European white birch include Betula pendula, common birch.

European white birch (noun)	silver birch (noun)
European birch with silvery white peeling bark and markedly drooping branches	European birch with silvery white peeling bark and markedly drooping branches