Betula vs birch

Betula and birch both are nouns.

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

Betula (noun)	birch (noun)
a genus of trees of the family Betulaceae (such as birches)	a switch consisting of a twig or a bundle of twigs from a birch tree; used to hit people as punishment
	any betulaceous tree or shrub of the genus Betula having a thin peeling bark
	hard close-grained wood of any of various birch trees; used especially in furniture and interior finishes and plywood

Betula (adjective)	birch (adjective)
	consisting of or made of wood of the birch tree

Betula (verb)	birch (verb)
	whip with a birch twig