https://www.gardenology.org/w/index.php?action=history&feed=atom&title=Western_Poison-ivyWestern Poison-ivy - Revision history2026-04-10T10:36:39ZRevision history for this page on the wikiMediaWiki 1.43.0https://www.gardenology.org/w/index.php?title=Western_Poison-ivy&diff=6377&oldid=prevMediaWiki default at 14:16, 3 August 20072007-08-03T14:16:07Z<p></p>
<p><b>New page</b></p><div>{{Taxobox<br />
| color = lightgreen<br />
| name = Western Poison-Ivy<br />
| regnum = [[Plant]]ae<br />
| divisio = [[Flowering plant|Magnoliophyta]]<br />
| classis = [[Magnoliopsida]]<br />
| ordo = [[Sapindales]]<br />
| familia = [[Anacardiaceae]]<br />
| genus = ''[[Toxicodendron]]''<br />
| species = '''''T. rydbergii'''''<br />
| binomial = ''Toxicodendron rydbergii''<br />
| binomial_authority = ([[John Kunkel Small|Small]] ex [[Per Axel Rydberg|Rydb.]]) [[Edward Lee Greene|Greene]]<br />
}}<br />
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===Description===<br />
'''Western Poison-Ivy''' (''Toxicodendron rydbergii'' or ''Rhus rydbergii'') is a [[shrub]] that can grow to 2 m (6 ft) tall. The leaves are trifoliate and alternate. The leaflets are variable in size and shape, and are usually 15 cm (6 in) long, turning yellow or orange in [[autumn]]. The fruits are small, round, and yellowish.<br />
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===Distribution===<br />
This species is native to most of the [[United States]] except the [[Pacific states]].<br />
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===Habitat===<br />
Western Poison-Ivy can be found growing in [[forest|forests]], and other wooded areas, usually near [[stream|streams]] and [[river|rivers]].<br />
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===Caution===<br />
All parts of this plant contain [[Urushiol]], which can cause severe [[dermatitis]] in some individuals.<br />
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[[Category:Sapindales]]<br />
[[Category:Poisonous plants]]</div>MediaWiki default