The Genus Datura: From Research Subject to Powerful Hallucinogen

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The Genus Datura: From Research Subject to Powerful Hallucinogen

Datura is one of the most interesting plants with hallucinogenic properties. Despite having a reputation as one of the 'darker' hallucinogens, it has been widely used by societies historically in both the Old World and the New, and continues to be today. For those interested in ethnobotanical uses of this plant world-wide, Datura is a fascinating topic. While being limited in its uses economically, the alkaloids contained in the plant have been in demand in the past and its application as a subject for botanical research is vast. Heiser has stated that "Datura is a genus of contrasts - from smelly weeds to lovely ornamentals." This paper will attempt to provide an overview of this varied genus, with specific attention being given to Datura stramonium, most common in North America.

Datura belongs to the family Solanaceae, the nightshades, which Includes some 2,400 species in total (Siegel 1989:36). Other plants with narcotic properties in this family are mandrake (Mandrogora), belladonna (Atropa), henbane (Hyoscyamus), and tobacco (Nicotiana). Appropriately called the "paradoxical plants" by Heiser, this family also includes such common food plants as the tomato, potato, and eggplant (Safford 1922:539). There seems to be some disagreement as to how many sections and species belong to the genus Datura. Conklin (1976:3-4) states that herbaceous Datura is now divided into five sections, while the older citation by Avery (1959:18) claims only four. in any case, this genus contains about ten different herbaceous species, the most important ones being D. stramonium, D. inoxia, D. metel, and D. ceratocaula (Schultes 1979:41-42).

Common names for Datura are numerous, some of the most common ones being raving nightshade, thorn apple, stinkweed, Devil's apple, Jimson weed, and angel's trumpet (Heiser 1969:140 and Avery 1959:19). Datura can be found throughout Asia, Europe, and the Americas as either native or adventive plants, and some have also been found in Africa and Australia (Conklin 1976:5). The epicenter of diversity of this plant is in the New World, specifically in Andean South America and in the southwestern United States/Mexico region (Lewis 1977:423-4). This data correlates with the generally agreed upon origin of Datura, although this topic was debated for some time. Researchers now believe the plant originated and evolved in Mexico and the American Southwest, followed by adaptive radiation into new desert environments (Conklin 1976:5).

Today, Datura (mainly the species stramonium) can be found all over North America as a roadside weed, but never in mountainous or forested habitats (Hutchens 1991:166).

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