Datura stramonium
Jimsonweed | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Solanales |
Family: | Solanaceae |
Genus: | Datura |
Species: | D. stramonium
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Binomial name | |
Datura stramonium | |
Synonyms[1] | |
Synonymy
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Datura stramonium, known by the common names thorn apple, jimsonweed (jimson weed), devil's snare, or devil's trumpet,
Description
Datura stramonium is an erect, annual, freely branching herb that forms a bush up to 60 to 150 cm (2 to 5 ft) tall.[10][11][12]
The root is long, thick, fibrous, and white. The stem is stout, erect, leafy, smooth, and pale yellow-green to reddish purple in color. The stem forks off repeatedly into branches and each fork forms a leaf and a single, erect flower.[12]
The leaves are about 8 to 20 cm (3–8 in) long, smooth, toothed,[11] soft, and irregularly undulated.[12] The upper surface of the leaves is a darker green, and the bottom is a light green.[11] The leaves have a bitter and nauseating taste, which is imparted to extracts of the herb, and remains even after the leaves have been dried.[12]
Datura stramonium generally flowers throughout the summer. The fragrant flowers have a pleasing odour; are trumpet-shaped, white to creamy or violet, and 6 to 9 cm (2+1⁄2–3+1⁄2 in) long; and grow on short stems from either the
The egg-shaped seed
Etymology and common names
The genus name is derived from the plant's Hindi name, dhatūra, ultimately from Sanskrit dhattūra, 'white thorn-apple'.[13] The origin of Neo-Latin stramonium is unknown; the name Stramonia was used in the 17th century for various Datura species.[14] There is some evidence that Stramonium is originally from Greek στρύχνον, 'nightshade' and μανικόν, 'which makes mad'.[15] It is called ummetta (ఉమ్మెత్త) in Telugu,[16] and umathai (ஊமத்தை) in Tamil.[17]; both of which are believed to have derived from the Sanskrit word unmatta (उन्मत्तः), meaning 'mad' or 'insane'.
In the United States the plant is called "Jimsonweed", or more rarely "Jamestown weed" deriving from the town of Jamestown, Virginia, where English soldiers consumed it while attempting to suppress Bacon's Rebellion. They spent 11 days in altered mental states:
The James-Town Weed (which resembles the Thorny Apple of Peru, and I take to be the plant so call'd) is supposed to be one of the greatest coolers in the world. This being an early plant, was gather'd very young for a boil'd salad, by some of the soldiers sent thither to quell the rebellion of Bacon (1676); and some of them ate plentifully of it, the effect of which was a very pleasant comedy, for they turned natural fools upon it for several days: one would blow up a feather in the air; another would dart straws at it with much fury; and another, stark naked, was sitting up in a corner like a monkey, grinning and making mows [grimaces] at them; a fourth would fondly kiss and paw his companions, and sneer in their faces with a countenance more antic than any in a Dutch droll.
In this frantic condition they were confined, lest they should, in their folly, destroy themselves—though it was observed that all their actions were full of innocence and good nature. Indeed, they were not very cleanly; for they would have wallowed in their own excrements if they had not been prevented. A thousand such simple tricks they played, and after eleven days returned themselves again, not remembering anything that had passed.
— Robert Beverley Jr., The History and Present State of Virginia, Book II: Of the Natural Product and Conveniencies in Its Unimprov'd State, Before the English Went Thither, 1705[18]
Common names for Datura stramonium vary by region[2] and include thornapple,[19] moon flower,[20] hell's bells, devil's trumpet, devil's weed, tolguacha, Jamestown weed, stinkweed, locoweed, pricklyburr, false castor oil plant,[21] and devil's cucumber.[22]
Range and habitat
Datura stramonium is native to North America, but was spread widely to the Old World early where it has also become naturalized.[2] It was scientifically described and named by Swedish botanist Carl Linnaeus in 1753, although it had been described a century earlier by botanists such as Nicholas Culpeper.[23] Today, it grows wild in all the world's warm and temperate regions, where it is found along roadsides and at dung-rich livestock enclosures.[24][25][26] In Europe, it is found as a weed in garbage dumps and wastelands,[24] and is toxic to animals consuming it.[27] In South Africa, it is colloquially known by the Afrikaans name malpitte ('mad seeds').[28]
Through observation, the seed is thought to be carried by birds and spread in their droppings.[citation needed] Its seeds can lie dormant underground for years and germinate when the soil is disturbed. The Royal Horticultural Society has advised worried gardeners to dig it up or have it otherwise removed,[29] while wearing gloves to handle it.[30]
Toxicity
All parts of Datura plants contain dangerous levels of the tropane alkaloids
The amount of toxins varies widely from plant to plant. As much as a 20:1 variation can be found between plants, and a given plant's toxicity depends on its age, where it is growing, and the local weather conditions.[24] A particularly strong difference has been found between plants growing in their native ranges and plants that have adjusted to growing in non-native ranges: in the latter, the atropine and scopolamine concentration may be up to 20–40 times lower than in the native range. It is suspected that this is an evolutionary response to lower predatory pressures.[33] Additionally, within a given plant, toxin concentration varies by part and even from leaf to leaf. When the plant is younger, the ratio of scopolamine to atropine is about 3:1; after flowering, this ratio is reversed, with the amount of scopolamine continuing to decrease as the plant gets older.[34] In traditional cultures, a great deal of experience and detailed knowledge of Datura was critical to minimize harm.[24] An individual seed contains about 0.1 mg of atropine, and the approximate fatal dose for adult humans is >10 mg atropine or >2–4 mg scopolamine.[35]
Datura intoxication typically produces delirium, hallucination, hyperthermia, tachycardia, bizarre behavior, urinary retention, and severe mydriasis, with resultant painful photophobia that can last several days.[9] Pronounced amnesia is another commonly reported effect.[36] The onset of symptoms generally occurs around 30 to 60 minutes after ingesting the herb. These symptoms generally last from 24 to 48 hours, but have been reported in some cases to last as long as two weeks.[32]
As with other cases of anticholinergic poisoning, intravenous physostigmine can be administered in severe cases as an antidote.[37]
Natural defenses
These chemical production responses present in Datura stramonium function as a natural defense for the plant against dangers.
The physiology of the plant itself is important for understanding patterns of defense as its status as an annual plant limits opportunities for biomass regrowth post-destruction, due to its inability to engage regrowth meristems. This results in the leaves being susceptible to injury from even small instances of attacks. To compensate, they have a large initial size for redundancy. These leaves also have a greater longevity and ability to metabolize even when damaged. However, the way these plants have evolved to display these characteristics differs from traditional defense mechanisms, as Datura stramonium uses a combination of both resistance and growth simultaneously to address these issues, instead of relying exclusively on one or the other. It has been hypothesized that this is due to the fact that these two methods have no negative correlation between them in experimental conditions. However, resource limitations may result in a tradeoff between one method of defense versus the other. In addition, herbivores are not solely the driving force that triggers these responses within the plant. Another factor that impacts behavior is the fact that due to the wide habitat range, a number of different, region-specific response patterns have been observed. However, these defensive responses have been observed to have varying impacts on growth and fitness when put to the test against predators. Studies in ecological reserves have shown that herbivore presence can either increase or decrease plant growth, fitness, and resistance. These results can be attributed to the significant genetic variation of the individual variants present in testing.[38]
Regional variation
The Datura family itself has seen little research done in regards to its various genomic sequences. As such, it is difficult to track the evolution of its traits (aside from a few instances of model species), which results in a limited understanding of how it has evolved to adapt to various environmental conditions. However, some limited studies have been done into Datura diversity. Datura stramonium diverged from the rest of the Datura family around 30 million years ago. This terminal branch has the most rapidly significant, evolving gene families compared to other members of the Solanaceae family. The most recent contractions in the tree also correspond with the
Tropane alkaloid evolution and implementation
Tropane alkaloid
Poisoning incidents
In Australia in December 2022, around 200 people reported becoming ill after eating products containing spinach, sold mostly through Costco. Datura stramonium was identified as the contaminant, whose young leaves had been picked alongside the spinach leaves. The weed had spread due to increased rainfall. The grower, Riviera Farms, is from the Gippsland region of Victoria, and acted promptly to eradicate the weed.[42]
Uses
Traditional medicine
One of the primary active agents in Datura is atropine, which has been used in traditional medicine and for recreation over centuries.[2][9] The leaves are generally smoked, either in a cigarette or a pipe.
During the late 18th century, James Anderson, the English Physician General of the East India Company, learned of the practice and popularized it in Europe.[43][44] The Chinese also used it as a form of anesthesia during surgery.[45]
Early folk medicine
John Gerard's Herball (1597) states,[12]
[T]he juice of Thornapple, boiled with hog's grease, cureth all inflammations whatsoever, all manner of burnings and scaldings, as well of fire, water, boiling lead, gunpowder, as that which comes by lightning and that in very short time, as myself have found in daily practice, to my great credit and profit.
Henry Hyde Salter discusses D. stramonium as a treatment for
Spiritualism and the occult
Across the Americas, indigenous peoples, such as the Algonquian, Aztecs, Navajo, Cherokee, Luiseño and the indigenous peoples of Marie-Galante used this plant or other Datura species in sacred ceremonies for its hallucinogenic properties.[49][50][51] In Ethiopia, some students and debtrawoch (lay priests), use D. stramonium to "open the mind" to be more receptive to learning, and creative and imaginative thinking.[52]
The common name "datura" has its origins in
Among its visionary purposes, jimsonweed also garnered a reputation for supposed magical uses in various cultures throughout history. In his book,
Cultivation
Datura stramonium prefers rich,
References
- ^ "Datura stramonium L. – The Plant List". theplantlist.org. Retrieved 20 June 2020.
- ^ a b c d e f g h i "Datura stramonium (jimsonweed)". CABI. 21 November 2018. Retrieved 6 May 2019.
- ^ "GRIN Genera of Solanaceae tribe Datureae". Germplasm Resources Information Network. United States Department of Agriculture. Archived from the original on 17 February 2013. Retrieved 12 December 2012.
- ^ "Datura stramonium in Flora of China @ efloras.org". efloras.org. Retrieved 16 August 2017.
- ^ "Datura stramonium". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 5 February 2008.
- ^ "Biota of North America Program, 2014 county distribution map". bonap.net.
- ^ Australia, Atlas of Living. "Datura stramonium: Common thornapple | Atlas of Living Australia". bie.ala.org.au. Retrieved 16 August 2017.
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- ^ a b c Henkel, Alice (1911). "Jimson weed". American Medicinal Leaves and Herbs. U.S. Government Printing Office. p. 30.
- ^ ISBN 978-0-486-22799-3.
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- Transactions of the Linnean Society of London. XIV: 233.
- ^ "Datura species". Plants Poisonous to Livestock. Cornell University Department of Animal Science. Retrieved 12 February 2010.
- ^ andhra-bharati (1 February 2024). "ఉమ్మెత్త : శబ్దరత్నాకరము (బహుజనపల్లి సీతారామాచార్యులు) 1912". andhrabharati.com/dictionary (in Telugu). Retrieved 1 February 2024.
- ^ Gnaana (16 October 2017). "ஊமத்தைங்காய் கொண்டு எத்தனை விதமான நோய்கள் குணமாக்கலாம்? உங்களுக்கு தெரியுமா?". tamil.boldsky.com (in Tamil). Retrieved 17 May 2021.
- ^ Beverley, Robert. "Book II: Of the Natural Product and Conveniencies in Its Unimprov'd State, Before the English Went Thither". The History and Present State of Virginia, In Four Parts. University of North Carolina. p. 24 (Book II). Retrieved 15 December 2008.
- ^ Bunney, Sarah. Illustrated Encyclopedia of Herbs.
- ^ "Jimsonweed". University of Texas El Paso / Austin Cooperative Pharmacy Program & Paso del Norte Health Foundation. Archived from the original on 29 July 2013. Retrieved 13 February 2013.
- ^ Joseph Henry Maiden (1920). The Weeds of New South Wales. Vol. 1. W.A. Gullick, Government printer. p. 76.
Thorn Apple or False Castor Oil Plant)
- ^ "Thorn-apple, Datura stramonium – Flowers – NatureGate". luontoportti.com.
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- ^ Oudhia P., Tripathi R.S.(1998).Allelopathic potential of Datura stramonium L.. Crop. Res. 16 (1) : 37-40.
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- ^ "Malpitte Madness". S. A. Medical Journal. 21 December 1974. Retrieved 29 January 2022.
- ^ "Deadly Harry Potter plant devil's snare turns up in Suffolk pensioner's garden". Retrieved 30 August 2017.
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- ^ "Noxious weed thornapple responsible identified as spinach contaminant, after about 200 Australians became ill". Australian Broadcasting Corporation. 22 December 2022.
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External links
- Media related to Datura stramonium at Wikimedia Commons
- Data related to Datura stramonium at Wikispecies
- USDA Natural Resources Conservation Service PLANTS Profile: Datura stramonium L.
- Datura stramonium at Liber Herbarum II
- Datura spp. at Erowid
- Datura stramonium Pictures and information