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Datura wrightii

About Toluaca (Datura wrightii) Datura wrightii 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. Datura wrightii is classified as a deliriant and an anticholinergic. It is a vigorous herbaceous perennial that grows 30 centimeter to 1.5 meter 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 centimeter (8 inches) long, often tinted purple, especially at the margin or in the throat. There are five narrow points spaced symmetrically around the rim. It can bloom from April to October. The fruit is spiny and conspicuous. In clear weather, flowers open at nearly full dark and wither a few hours after sunrise the following morning; in cloudy weather or in part shade, they may open earlier and last longer. A closely related species, Datura discolor, is limited to the Colorado desert and is very similar in appearance
Plant Description
Plant Type
Perennial herb

Max. Height
1 - 5 ft (0.3 - 1.5 m)

Max. Width
6 ft (1.8 m)

Mounding, Spreading

Fragrant - Pleasant

Growth Rate

Large (7-20 cm), dark green, sometimes toothed, covered with minute white hairs, especially on the underside. Because it is an herbaceous perennial, the entire plant typically dies back to the ground at the end of its growth season.

Flower Color
Purple, White

Flowering Season
Spring, Summer, Fall, Winter

Native Status

Natural Setting
Site Type
Sandy or gravelly open places, often disturbed places such as the edges of trails and road shoulders

Part Shade, Sun

Elevation ?
-94' - 6907'

Annual Precip. ?
3.0" - 63.5"

Summer Precip. ?
0.14" - 3.08"

Coldest Month ?
34.5° F - 63.3° F

Hottest Month ?
61.2° F - 89.1° F

Humidity ?
0.68 vpd - 40.59 vpd

Soil Description
Adaptable but prefers coarse well drained soil

Soil Texture
Loamy Sand, Sand, Sandy Loam

Fast, Medium

Sunset Zones ?
7*, 8*, 9*, 10*, 11, 12, 13, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24*

Companion Plants
Because Western Jimsonweed is occurs in so many parts of the southwest, it may be accompanied by any number of plants from the above habitats.

Wildlife Attracted
Primarily insects, including sphinx moths and various beetles

Landscaping Information
Ease of Care
Moderately Easy

Water Requirement ?
Extremely Low
Very Low
Moderate - High

Seldom Used

Max. Summer Water ?
No Summer Water
No Summer Water
Keep moist

Propagation ?
Use caution if attempting to propagate this plant from seeds because the toxin is concentrated in the seeds. Use caution in handling or storing seeds for fruits, and especially keep away from children or pets.  For propagating by seed: No treatment. (Everett 1957).

Common uses
Groundcovers, Deer Resistant

Nursery Availability
Commonly Available

Other Names
Common Names
Sacred Datura, Sacred Thorn-apple, Sacred Thornapple

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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