E. Novo = Erythroxylum Novogranatense
Coca species.
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The cocaine alkaloid content of the E. coca and the E. novogranatense species also serves to distinguish between these species and the many other species of wild coca that grow in Latin America. These other species contain much lower levels of cocaine alkaloid. The usual cocaine alkaloid content of a sample of coca leaf material is between 0.1 and 0.8 percent. The cocaine alkaloid content can go much higher, however, as was shown in one sample of coca leaf from the Chapare region in Bolivia that measured 1.2 percent. Coca grown on the upper slopes of the Andes also contain more cocaine alkaloids than coca grown in low-lying areas. It is therefore believed that the best quality coca is grown at higher altitudes
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