Koka (Erythroxylum coca), iku tetuwuhan ing kulawarga Erythroxylaceae, asal saka Amérika Kidul sisih kulon. Tetuwuhan iki wigati ing tradhisi   Budaya Andean). Koka ditepungi déning kandhutan dat alkaloid, kalebu kokain, siji dat perangsang (stimulant) sing kuwat.

Pranala njaba 

 Shared Responsibility 
 Coca leaf: Myths and Reality website of the Transnational Institute (TNI)
 Unscheduling the coca leaf, UN Drug Control website of the Transnational Institute (TNI)
 Coca leaf news page – Alcohol and Drugs History Society

Erythroxylum
Tetuwuhan