Erythroxylon vs genus Erythroxylon

Erythroxylon and genus Erythroxylon both are nouns.

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

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

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

Other synonyms of Erythroxylon include Erythroxylum, genus Erythroxylum.

Erythroxylon (noun)	genus Erythroxylon (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