Erythroxylum vs genus Erythroxylum

Erythroxylum and genus Erythroxylum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Erythroxylum	Yes	No	No	No
genus Erythroxylum	Yes	No	No	No

As nouns, Erythroxylum and genus Erythroxylum are synonyms defined as:

Erythroxylum and genus Erythroxylum: a large genus of South American shrubs and small trees of the family Erythroxylaceae

Other synonyms of Erythroxylum include Erythroxylon, genus Erythroxylon.

Erythroxylum (noun)	genus Erythroxylum (noun)
a large genus of South American shrubs and small trees of the family Erythroxylaceae	a large genus of South American shrubs and small trees of the family Erythroxylaceae