paper birch vs Betula papyrifera

paper birch and Betula papyrifera both are nouns.

Word	Noun	Adjective	Verb	Adverb
paper birch	Yes	No	No	No
Betula papyrifera	Yes	No	No	No

As nouns, paper birch and Betula papyrifera are synonyms defined as:

paper birch and Betula papyrifera: small American birch with peeling white bark often worked into e.g. baskets or toy canoes

Other synonyms of paper birch include American white birch, Betula cordifolia, canoe birch, paperbark birch.

paper birch (noun)	Betula papyrifera (noun)
small American birch with peeling white bark often worked into e.g. baskets or toy canoes	small American birch with peeling white bark often worked into e.g. baskets or toy canoes