Erythroxylum coca
- Cocaine is found in the leaves of the Erythroxylon coca plant.
- The cocaine content of the leaves ranges from O.1% to 0.9%.
- Coca plants grown at higher altitudes contain a higher percentage of the cocaine alkaloid than those grown at lower altitudes and are consequently more potent.
- Chewing coca leaves counters the symptoms of 'mountain sickness' and oxygen-deprivation.