The Coca Plant

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The Coca Plant

Erythroxylum coca Lamark is a tropical shrub of the order Geraniales and the family Erythroxylaceae. Two tropical genera of the dicotyledons totaling approximately 250 species of trees and shrubs compose this family. Family characteristics are alternate, undivided, lobeless, toothless leaves, and small flowers in clusters from the leaf axils with persistent calyces with five lobes or sepals, five petals often with appendages, ten persistent stamens united at their bases, and three styles. The fruits are small drupes. (see Everett, 1981and Angiosperms in Brittanica Online) The name Erythroxylum comes from the Greek erythros, red, and xylon wood. Lamarck described the species E. coca in 1786. (Plowman,1982)

Distribution

Erythroxylum coca is cultivated in Africa, northern South America, southeast Asia, and Taiwan. It grows from 2-4m (8 feet) tall. The plants thrive best in hot, damp situations, such as the clearing of forests, but the leaves most preferred are obtained in drier locations, such as on the sides of hills. (Boucher) The Plants are found mainly in relatively small areas of Peru and Bolivia, the major producing countries.

The upper Huallaga Valley, along a tributary of the Amazon in Peru, produces 60% of the world's coca. In Bolivia, the crop traditionally was grown on steep eastern slopes of the Yungas region of the Andes Mountains at elevations of 1000 to 2000 meters. However, in recent decades, the lower-elevation Chapare Valley overtook the Yungas in production, and cultivation is now expanding into lowland rain forests. (see "Coca" in Britannica Online)

History & Traditional Uses

Archaeological evidence indicates that coca was domesticated by 1500 BC. In pre-Columbian times, coca was a major element of the economy (Hastdorf, 1987). Andean peasants and miners traditionally have consumed coca by sucking wads of leaves, keeping them in their cheeks for hours at a time. Often the coca is combined with chalk or ash, which helps dissolve the alkaloids into saliva. Coca chewing reduces hunger pain, and workers say the leaves give them strength and endurance to work for many hours at high altitudes, often in extreme cold. Some of the healthiest and hardest-working Indians on the Colombian Amazon the Yukunas consume enormous amounts of coca leaves daily, but this not a problem as they have time to raise their crops, hunt, fish and supply their food. (Linales) Perhaps the most ancient use of coca in South America is its employment in various shaman practices and religious rituals.

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