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Coke
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coca, common name for shrubs of the genus Erythroxylum, particularly E. coca, of the family Erythroxylaceae, and found abundantly in upland regions and on mountain slopes of South America, as well as in Australia, India, and Africa. Certain South American peoples chew the leaves of one of several species mixed with an alkali, lime, which acts with saliva to release the drug cocaine from the leaves. In the low doses obtained in this way, the drug acts as a stimulant and an appetite depressant with physiological effects similar to those of tobacco. Until the time of the Spanish conquest, only the Inca aristocracy was privileged to chew the coca leaves, but afterward, the Spanish encouraged the enslaved Native Americans all to use coca in order to get them to endure long periods of heavy labor and physical hardships. A cocaine-free extract of coca leaves is used in some soft drinks. Coca, a different plant than the cocoa plant cacao, is grown commercially in the N and central Andean countries and in Sri Lanka, Java, and Taiwan. Much coca is also grown in Andean countries for the illegal international drug trade. Coca is classified in the division Magnoliophyta, class Magnoliopsida, order Linales, family Erythroxylaceae.

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Coke
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coca

Coca (Erythroxylum coca).

Tropical shrub (Erythroxylum coca) of the family Erythroxylaceae. It is native to the eastern Andes Mountains but cultivated in Africa, northern South America, Southeast Asia, and Taiwan. Its leaves are the source of cocaine and several other alkaloids. Coca thrives best in hot, damp environments, such as forest clearings; but the leaves most preferred are obtained in drier localities, on the sides of hills. The composition of different specimens of coca leaves is highly variable. Good samples have a strong tealike odor and a pleasant, pungent taste. When chewed, coca leaves produce a sense of warmth in the mouth; because of their potent stimulant and appetite-depressant effects, coca has been used for centuries by South American peasants to ease the effects of punishing physical labor.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.