Gourt > Science > Biology > Flora and Fauna > Plantae > Magnoliophyta > Magnoliopsida > Anacardiaceae > Toxicodendron
Toxicodendron is a small genus of woody trees, shrubs and vines, all of which produce the skin-irritating oil urushiol, which can cause a severe allergic reaction; hence the scientific name which means "poison tree".
Members of this genus are very often included in the genus Rhus. As genetic studies show that Rhus without Toxicodendron is paraphyletic, this is the better treatment to follow botanically, but there is some practical convenience in having the highly allergenic species listed separately.
They have pinnately compound, alternate leaves and whitish or grayish drupes. The best known member is poison-ivy, practically ubiquitous throughout much of North America.
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'Symphytum officinale and rhus toxicodendron' it says on a tube of homeopathic embrocation gel. Begone carpal tunnel!
harrarp (HarrArp) Tue, 08 Dec 2009 06:21:54 -0000
'Symphytum officinale and rhus toxicodendron' it says on a tube of homeopathic embrocation gel. Begone carpal tunnel!
@JulzTorti Oh you poor girl. How'd you contract Toxicodendron? BTW I am visualizing your visit to NYC. We're going to have a blast.
jtortolani (Jules Tortolani) Fri, 04 Dec 2009 06:06:11 -0000
@JulzTorti Oh you poor girl. How'd you contract Toxicodendron? BTW I am visualizing your visit to NYC. We're going to have a blast.
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Poison Ivy (Toxicodendron radicans) - Description of the plant, the skin reaction it causes, uses, control, and photos.
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Poison Ivy Information - Botanical information about Toxicodendron, from Botanical.com
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Poison Oak - Botanical, toxicological and ethnobotany information, with photographs, on Toxicodendron diversilobum and other related and unrelated plant species containing the toxin urushiol.
Toxicodendron toxicarium - Eastern poison-oak. Information on taxonomy, botanical and ecological characteristics, geographic distribution, fire ecology, and management.
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