genus Erythroxylon vs genus Erythroxylum

genus Erythroxylon and genus Erythroxylum both are nouns.

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

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

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

Other synonyms of genus Erythroxylon include Erythroxylon, Erythroxylum.

genus Erythroxylon (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