Les fruits et les feuilles de coca, l'arbuste Erythroxylum à partir de laquelle la cocaïne est obtenue. L'utilisation des feuilles de coca comme masticatoire stimulant a été large

• Contributeur: Science Photo Library / Alamy Banque D'Images
• ID de l’image: 2ACDE1F
• Taille du fichier: 49,9 MB (2,5 MB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 3551 x 4911 px | 30,1 x 41,6 cm | 11,8 x 16,4 inches | 300dpi
• Date de la prise de vue: 2 août 1991
• Photographe: DR MORLEY READ/SCIENCE PHOTO LIBRARY

Informations supplémentaires

The fruit and leaves of Erythroxylum coca, the shrub from which cocaine is obtained. The use of coca leaves as a stimulating masticatory has been widespread among the people of the Amazon basin for many centuries. Cultivation was encouraged by Jesuit missionaries. A wad of dried leaves is chewed and formed into a small quid held against the cheek. The narcotic principle is the alkaloid cocaine, of which the leaves contain about 1 per cent. It acts directly on the central nervous system causing psychic exaltation and resistance to physical and mental fatigue. This plant was photographed growing on a farm in Ecuador near the Colombian border.

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