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The plants thrive best in hot, damp and humid locations, such as the clearings of forests; but the leaves most preferred are obtained in drier areas, on the hillsides. The leaves are gathered from plants varying in age from one and a half to upwards of forty years, but only the new fresh growth is harvested.
In controlled environment studies, the optimum average daily temperature for leaf growth for E. novogranatense var. novogranatense was found to be around 27 °C (81 °F), whereas leaf growth was generally higher at photosynthetic photon flux densities (PPFD) of 250 or 400 micromol per meter square per second than at 155 micromol per meter ...
Erythroxylum coca var. ipadu, also known as Amazonian coca, is closely related to Erythroxylum coca var. coca, from which it originated relatively recently. [3] E. coca var. ipadu does not escape cultivation or survive as a feral or wild plant like E. coca var. coca [4] It has been suggested that due to a lack of genetic isolation to differentiate it from E. coca var. coca, E. coca var. ipadu ...
Although cocaine use became widespread in the 19th century once it was synthesized into cocaine hydrochloride salts, Europeans knew of the coca plant’s stimulating effects since the early 15th ...
The leaves of the coca plant contain alkaloids that—when extracted chemically—are the source for cocaine base. The amount of coca alkaloid in the raw leaves is small, however. A cup of coca tea prepared from one gram of coca leaves (the typical contents of a tea bag) contains approximately 4.2 mg of organic coca alkaloid. [1]
Coca eradication in Colombia. Coca eradication is a strategy promoted by the United States government starting in 1961 as part of its "war on drugs" to eliminate the cultivation of coca, a plant whose leaves are not only traditionally used by indigenous cultures but also, in modern society, in the manufacture of cocaine.
Within Bolivia, the world’s third-biggest producer of the coca leaf, and of cocaine, the ancient leaf has inspired spiritual rituals among Indigenous communities for generations — and more ...
Rubiaceae (/ r uː b i ˈ eɪ s iː ˌ iː,-s i ˌ aɪ /) is a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas , or herbs that are recognizable by simple, opposite leaves with interpetiolar stipules and sympetalous actinomorphic flowers.