Datura stramonium

Datura stramonium, known by the common names, jimson weed, ditch weed, stink weed, loco weed,Korean morning glory, Jamestown weed, thorn apple, angel's trumpet, devil's trumpet, devil's snare, devil's seed, mad hatter, crazy tea, malpitte, the Devil's balls, is an erect annual herb, on average 30 to 150 cm (1-5 feet) tall with erect, forking and purple stems. The leaves are large, 7 to 20 cm (3-8 in) long and have irregular teeth

Thorn apple / Jimson weed
Scientific classification
Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Magnoliopsida
Order:	Solanales
Family:	Solanaceae
Genus:	Datura
Species:	D. stramonium
Binomial name
Datura stramonium L.
Synonyms
Datura inermis Juss. ex Jacq. Datura stramonium var. chalybea W. D. J. Koch, nom. illeg. Datura stramonium var. tatula (L.) Torr. Datura tatula L.

Flowers are trumpet-shaped, white to purple, and 2-7 in long.The fruit are walnut-sized, egg-shaped, and covered in prickles, they split into four chambers, each chamber with dozens of small black seeds

mature capsule of Jimsonweed

Datura Stramonium Media

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  Mature (left) and immature (right) seed capsules

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  Datura stramonium - Köhler–s Medizinal-Pflanzen-051

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  Datura stramonium var. tatula (L.) Torr flower

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  Seed capsule, showing dehiscence of the four valves to release seeds

Other websites

http://www.erowid.org/plants/datura/datura_info5.shtml