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===[[User:VladimirGotShot]]===
{{Taxobox
;Suspected sockpuppeteer
| color = lightgreen
:{{user5|VladimirGotShot}}
| name = Rhubarb
| image = Rhubarb.jpeg
| image_width = 240px
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Magnoliopsida]]
| ordo = [[Caryophyllales]]
| familia = [[Polygonaceae]]
| genus = '''''Rheum'''''
| genus_authority = [[Carolus Linnaeus|L.]]
| subdivision_ranks = Species
| subdivision =
See text.
}}
;Suspected sockpuppets
{{For|the British animated series|Roobarb}}
:{{user5|BruinBlitz07}}
;Report submission by
'''Rhubarb''' is a [[perennial]] [[plant]] that grows from thick short [[rhizome]]s, comprising the genus ''Rheum''. The large, somewhat triangular [[leaf]] blades are elevated on long, fleshy [[petiole]]s. The [[flower]]s are small, greenish-white, and borne in large compound leafy [[inflorescence]]s.
[[User:Coren|Coren]] 02:06, 27 June 2007 (UTC)
;Evidence
The plant is indigenous to [[Asia]], and many suggest that it was often used by the [[Mongolians]]; particularly, the [[Tatars]] tribes of the Gobi. Varieties of rhubarb have a long history as medicinal plants in [[Traditional Chinese Medicine]], but the use of rhubarb as food is a relatively recent innovation, first recorded in [[17th century]] [[England]], after affordable [[sugar]] became available to common people. Rhubarb is now grown in many areas, primarily for its fleshy petioles, commonly known as ''rhubarb sticks''. In temperate climate rhubarb is one of the first food plants to be ready for harvest, usually in April/May. The [[petiole]]s can be cooked in a variety of ways. Stewed, they yield a tart sauce that can be eaten with sugar or used as filling for [[pie]]s, [[tart]]s, and [[crumble]]s. This common use led to the [[German language|German]] slang term for rhubarb, ''piestengel'' or "pie plant." '''Rhubarb''' is also used to make [[country wine|wine]]. In former days, a common and affordable sweet for children in [[Yorkshire]] was a tender stick of rhubarb, dipped in copious amounts of [[sugar]]. In the [[United Kingdom|UK]] the first rhubarb of the year is grown by candlelight in dark sheds dotted around the famous ‘[[Rhubarb Triangle]]’ of [[Wakefield]], [[Leeds]] and [[Morley]]<ref name="wgur">{{cite web | author = Wakefield Metropolitan District Council | url = http://www.wakefield.gov.uk/CultureAndLeisure/HistoricWakefield/Highlights/Rhubarb/default.htm | title = www.wakefield.gov.uk: Rhubarb | format = html | publisher = Wakefield Metropolitan Council, Town Hall, Wood Street, Wakefield. Tel:44+ (0)1924 306090. Email: internet@wakefield.gov.uk | accessdate = 2006-03-12}}</ref>.
Same set of basic edits, spamming (and tweaking) the 'entrepreneur.com' website (for instance [http://en.wikipedia.org/w/index.php?title=Fantastic_Sams&diff=prev&oldid=140792946 1] [http://en.wikipedia.org/w/index.php?title=Choice_Hotels&diff=prev&oldid=140794523 2] as [http://en.wikipedia.org/w/index.php?title=Mail_Boxes_Etc.&diff=prev&oldid=140629165 3] [http://en.wikipedia.org/w/index.php?title=Dunkin%27_Donuts&diff=prev&oldid=140626063 4]) and repeatedly recreates CSD material ([http://en.wikipedia.org/w/index.php?title=Home_Franchise_Concepts&diff=prev&oldid=140832053 5] to [http://en.wikipedia.org/w/index.php?title=Home_Franchise_Concepts&diff=prev&oldid=140573832 6] ([http://en.wikipedia.org/w/index.php?title=Special:Log&page=Home_Franchise_Concepts page log])).
[[Image:Rhubarb_Pie.jpg|thumb|left|250px|A Homemade Rhubarb Pie]]
In warm climates rhubarb will grow all year round, but in colder climates the parts of the plant above the ground disappear completely during winter, and begin to grow again from the root in early spring. It can be ''forced'', that is, encouraged to grow early, by raising the local temperature. This is commonly done by placing an upturned bucket over the shoots as they come up.
;Comments
The plant occurs in at least four species. Those most commonly used in cooking are the '''Garden Rhubarb''' (''R. rhabarbarum'') and ''R. rhaponticum'', which though a true rhubarb bears the common name '''False Rhubarb'''. The drug rheum is prepared from the rhizomes and [[root]]s of another species, ''R. officinale'' or '''Medicinal Rhubarb'''. This species is also native to Asia, as is the '''Chinese Rhubarb''' (''R. palmatum''). Rhubarb is used as a strong [[laxative]] and for its astringent effect on the [[mucous membrane]]s of the mouth and the [[nasal cavity]].
''Rheum'' species have been recorded as [[larva]]l food plants for some [[Lepidoptera]] species including [[Brown-tail]], [[Buff Ermine]], [[Cabbage Moth]], [[Large Yellow Underwing]], [[Nutmeg (moth)|The Nutmeg]], [[Setaceous Hebrew Character]] and [[Turnip Moth]].
;Conclusions
==Toxic effects==
[[Image:Rhubarb 01.jpg|thumb|250px|Rhubarb]]
Rhubarb leaves contain [[poison]]ous substances. Rhubarb leaf poisoning is most often caused by [[oxalic acid]], a [[corrosive]] and [[nephrotoxic]] acid that is abundantly present in a lot of plants. The [[LD50]] for pure oxalic acid is predicted to be about 375 [[milligram|mg]]/[[kilogram|kg]] [[body weight]], or about 25 [[gram|g]] for a 65 kg human. While the oxalic acid content of rhubarb leaves can vary, it averages about 0.5%, so a rather unlikely five kilograms of the extremely sour leaves would have to be consumed to reach an LD50 dose. In the petioles, the amount of oxalic acid is much lower, especially when harvested before mid-June so the [[phloem]] will explode (on the northern hemisphere), but it is still enough to cause slightly rough teeth.
The roots and stems are rich in [[anthraquinone]]s, such as [[emodin]] and [[rhein]]. These substances are cathartic and [[laxative]], which explains the sporadic abuse of Rhubarb as [[dieting|slimming]] agent. Anthraquinones are yellow or orange and may colour the [[urine]].
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==Other uses of the word==
</div>
It is or was common for a crowd of [[Extra (actor)|extra]]s in [[acting]] to shout the word "rhubarb" repeatedly and out of step with each other, to cause the effect of general hubbub. As a result, the word "rhubarb" sometimes is used to mean "length of superfluous text in speaking or writing", or a general term to refer to irrelevant chatter by chorus or extra actors.
Possibly from this usage, possibly from a variant on "[[Reubens|rube]]", or perhaps some of both, the word also denotes a loud argument. The term has been most commonly used in [[baseball]].
==References==
<!--See [[Wikipedia:Footnotes]] for an explanation of how to generate footnotes using the <ref(erences/)> tags-->
<references/>
==External links==
{{Wikibookspar|Cookbook|Rhubarb Pie}}
* [http://www.rhubarbinfo.com/ The Rhubarb Compendium]
[[Category:Caryophyllales]]
[[Category:Vegetables]]
[[ar:راوند]]
[[cy:Riwbob]]
[[da:Rabarber]]
[[de:Gemeiner Rhabarber]]
[[es:Rheum rhabarbarum]]
[[eo:Rabarbo]]
[[fa:ریواس]]
[[fr:Rhubarbe]]
[[ku:Rêwas]]
[[lt:Rabarbaras]]
[[nl:Rabarber]]
[[ja:ダイオウ]]
[[no:Rabarbra]]
[[fi:Raparperi]]
[[sv:Rabarber]]
[[tr:Işgın]]
[[zh:大黄]]
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