1) Erythroxylon 2) Genus erythroxylon 3) Genus erythroxylum 4) Plant genus 1) Erythroxylon 
Erythroxylum (=Erythroxylon) is a genus of tropical flowering plants in the family Erythroxylaceae. Many of the approximately 200 species contain the drug cocaine; Erythroxylum coca, a native of South America, is the main commercial source of cocaine and of the mild stimulant coca tea. Another species, Erythroxylum vacciniifolium (also known as Ca...