Betula pendula vs silver birch

Betula pendula and silver birch both are nouns.

Word	Noun	Adjective	Verb	Adverb
Betula pendula	Yes	No	No	No
silver birch	Yes	No	No	No

As nouns, Betula pendula and silver birch are synonyms defined as:

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

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

Betula pendula (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