Datura wrighti, or sacred datura, is the name of a poisonous perennial plant and ornamental flower of southwestern North America. It is sometimes used as a hallucinogen. D. wrighti is classified as a deliriant and an anticholinergic.
It is a vigorous herbaceous perennial that grows 30 cm to 1.5 m tall and wide. The leaves are broad and rounded at the base, tapering to a point, often with wavy margins. The flowers are the most striking feature, being sweetly fragrant white trumpets up to 20 cm (7.9 in) long, sometimes tinted purple, especially at the margin. Five narrow points are spaced symmetrically around the rim. The plants often can be seen as a ground vine in habit, growing close to the ground and spreading in a very exposed environment with full direct sunlight (cleared roadside). D. Wrightii, blooms from April through October. In clear weather, flowers open in the morning and evening and close during the heat of the day (depending on water availability); in cloudy weather, they may open earlier and last longer.
The seeds are borne in a spiny, globular capsule 3 to 4 cm in diameter, which opens when fully ripe.
Datura wrightii is found in northern Mexico and the adjoining southwestern U. S. states, as far north as southern Utah, in open / disturbed land and along roadsides with well-drained (sandy) soils. It is also commonly planted as an ornamental, especially in xeriscapes due to its ruderal characteristics.
In Australia, it has been recorded as a garden escapee in New South Wales, Victoria, South Australia and Western Australia.
All parts of Datura plants contain dangerous levels of anticholinergictropane alkaloids and may be fatal if ingested by humans, livestock, or pets. In some places, it is prohibited to buy, sell or cultivate Datura plants.