yellow birch vs Betula alleghaniensis

yellow birch and Betula alleghaniensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow birch	Yes	No	No	No
Betula alleghaniensis	Yes	No	No	No

As nouns, yellow birch and Betula alleghaniensis are synonyms defined as:

yellow birch and Betula alleghaniensis: tree of eastern North America with thin lustrous yellow or grey bark

Other synonyms of yellow birch include Betula leutea.

yellow birch (noun)	Betula alleghaniensis (noun)
tree of eastern North America with thin lustrous yellow or grey bark	tree of eastern North America with thin lustrous yellow or grey bark