Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon
Datura stramonium

Higher Taxonomy
Family: SolanaceaeView DescriptionDichotomous Key

Common Name: NIGHTSHADE FAMILY
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 stramonium L.
NATURALIZED
Habit: Annual < 10 dm. Stem: +- glabrous to sparsely hairy. Leaf: 5--15 cm, 4--10 cm wide, ovate, coarsely toothed to shallowly lobed. Flower: erect; calyx 3.5--4.5 cm, angled toward base, lobes 5--7 mm; corolla 6--9 cm, glabrous, white or pale blue-purple, lobes 8--10 mm, spreading, tips long, narrow; filaments 22--25 mm, anthers 3.5--5 mm; style 4--6 cm. Fruit: 4-valved, erect, 25--35 mm wide, glabrous; prickles 3--10 mm, upper > lower. Seed: 3--3.5 mm, black. Chromosomes: n=12.
Ecology: Sandy soils, open, often disturbed areas; Elevation: < 1500 m. Bioregional Distribution: CA-FP (exc CaR, SNH), MP; Distribution Outside California: to eastern United States; native to Mexico. Flowering Time: Jun--Aug
Synonyms: Datura stramonium var. tatula (L.) Torr.
eFlora Treatment Author: Michael H. Nee
Jepson Online Interchange

Previous taxon: Datura ferox
Next taxon: Datura wrightii

Name Search

Contact/Feedback

Citation for this treatment: Michael H. Nee 2016. Datura stramonium, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=22387, accessed on February 08, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 08, 2016.


Datura stramonium
click for enlargement
© 2013 Neal Kramer
Datura stramonium var. stramonium
click for enlargement
© 2006 George W. Hartwell
Datura stramonium var. stramonium
click for enlargement
© 2006 George W. Hartwell
Datura stramonium
click for enlargement
© 2013 California Academy of Sciences
Datura stramonium var. stramonium
click for enlargement
© 2006 George W. Hartwell
Datura stramonium
click for enlargement
© 2013 Neal Kramer

More photos of Datura stramonium in CalPhotos


Geographic subdivisions for Datura stramonium:
CA-FP (exc CaR, SNH), MP;
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.
READ ABOUT YELLOW FLAGS
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

CCH collections by month

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