Betula pendula vs common birch

Betula pendula and common birch both are nouns.

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

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

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

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

Betula pendula (noun)	common birch (noun)
European birch with silvery white peeling bark and markedly drooping branches	European birch with silvery white peeling bark and markedly drooping branches