Jepson eFlora: Taxon page
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Datura discolor

Higher Taxonomy
Family: SolanaceaeView DescriptionDichotomous Key

Habit: Annual to shrub. Leaf: generally simple, generally alternate, generally petioled; stipules 0; blade entire to deeply lobed. Inflorescence: various. Flower: bisexual; calyx lobes generally 5; corolla +- radial, cylindric to rotate, lobes generally 5; stamens 5, on corolla tube, alternate lobes; ovary superior, generally 2-chambered, style 1. Fruit: berry, loculicidal or septicidal capsule, [(drupe)], 2--5-chambered.
Genera In Family: 75 genera, 3000 species: worldwide, especially +- tropics; many alien weeds in California; many cultivated for food, drugs, or ornamental (potato, tomato, peppers, tobacco, petunia). Toxicity: many TOXIC. Note: Nicandra physalodes (L.) Gaertn. is a waif.
eFlora Treatment Author: Michael H. Nee
Scientific Editor: Thomas J. Rosatti.
Genus: DaturaView DescriptionDichotomous Key

Common Name: JIMSON WEED
Habit: Annual to subshrub, hairs +- 0 or simple, ill-smelling. Leaf: entire to deeply lobed. Inflorescence: flowers 1 in branch forks. Flower: calyx circumscissile near base, leaving +- rotate collar in fruit; corolla funnel-shaped, white or +- purple, lobes 5(10); stamens attached below tube middle; ovary 2- or 4-chambered. Fruit: capsule, leathery or woody, prickly; valves 2--4 or irregular. Seed: +- flat, black, brown, gray-brown, or tan.
Species In Genus: +- 13 species: warm regions, especially Mexico; several ornamental, some source of drugs. Etymology: (Hindu: ancient name) Toxicity: All species. TOXIC.

Datura discolor Bernh.
Habit: Annual < 5 dm. Stem: gray-hairy. Leaf: 6--12 cm, 4--10 cm wide, widely ovate, coarsely toothed. Flower: erect; calyx 5--9 cm, 5-winged toward base, lobes 1--1.5 cm; corolla 10--16 cm, glabrous, white with purple markings in tube, lobes shallow; filaments 4.5 cm, anthers 5--6 mm; style 10--14 cm. Fruit: 4-valved, nodding, 35 mm wide, puberulent; prickles many, < 2 cm, weak. Seed: 3--3.5 cm, coarsely wrinkled, black with a white outgrowth near attachment scar. Chromosomes: n=12.
Ecology: Sandy, gravelly soils, washes; Elevation: < 500 m. Bioregional Distribution: DSon; Distribution Outside California: Mexico. Flowering Time: Apr--Oct
eFlora Treatment Author: Michael H. Nee
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Citation for this treatment: Michael H. Nee 2016. Datura discolor, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on February 13, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on February 13, 2016.

Datura discolor
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© 2015 Keir Morse
Datura discolor
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© 2010 Neal Kramer
Datura discolor
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© 2013 Neal Kramer
Datura discolor
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© 2013 Neal Kramer
Datura discolor
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© 2007 California Academy of Sciences
Datura discolor
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© 2013 Neal Kramer

More photos of Datura discolor in CalPhotos

Geographic subdivisions for Datura discolor:
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.