datura

plant
Also known as: Datura, thorn apple

datura, (genus Datura), genus of about nine species of poisonous flowering plants in the nightshade family (Solanaceae). Several Datura species are collected for use as drugs, and others are cultivated for their showy flowers. Many are considered weeds in warm parts of the world and commonly grow along roadsides and other disturbed habitats. Datura species are often confused with members of the related genus Brugmansia, which features a number of ornamental trees and shrubs known as angel’s trumpets.

Physical description

Datura species are herbaceous sprawling annuals or short-lived perennials, characterized by large trumpet-shaped flowers. The fragrant flowers can be white, yellow, pink, or purple and produce a spiny capsule fruit with numerous seeds. The leaves are simple and alternately arranged, with lobed, wavy, or entire margins. The plants contain potent alkaloids, including atropine, scopolamine, and hyoscyamine, and can be fatal if ingested.

Major species

A number of species, especially jimsonweed, or thorn apple (D. stramonium), toloache (D. innoxia), and sacred datura (D. wrightii), have long been used by various peoples, including Mexican Indians, in their religious ceremonies.

Venus's-flytrap. Venus's-flytrap (Dionaea muscipula) one of the best known of the meat-eating plants. Carnivorous plant, Venus flytrap, Venus fly trap
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The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Melissa Petruzzello.
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ethnobotany, systematic study of the botanical knowledge of a social group and its use of locally available plants in foods, medicines, clothing, or religious rituals. Rudimentary drugs derived from plants used in folk medicines have been found to be beneficial in the treatment of many illnesses, both physical and mental. The ethnobotany of prehistoric cultures is discovered through examination of ancient writings, pictures, pottery, and plant remains in jars or midden heaps (garbage dumps) excavated at archaeological sites. From this information, the agricultural practices and cultural development of a people can be determined. Ethnobotanists often live for periods of time in the society they are studying, to observe all phases of their lives, including mythology, religious practices, and language, in order to determine the specific plants used and the methods involved in their preparation. Travelers’ journals, the field notes of early botanists, and other writings serve as sources of information about agricultural methods and folk remedies of the past.