For other uses, see Coca (disambiguation).Coca Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudicots (unranked): Rosids Order: Malpighiales Family: Erythroxylaceae Genus: Erythroxylum Species: E. coca Binomial name Erythroxylum coca, Lam. Coca (Erythroxylum coca) is a plant in the family Erythroxylaceae, native to western South America. The plant plays a significant role in traditional Andean culture. Coca is best known throughout the world because of its alkaloids, which i...