121. Poison Ivy, Poison Oak, And Poison Sumac, UPMC | University Of Pittsburgh Medica A comprehensive resource describing the symptoms and treatment of poison ivy,poison oak, and poison sumac exposure from the health care experts at the http://poisonivy.upmc.com/

Home Poison Ivy, Poison Oak, and Poison Sumac Poison ivy, poison oak, and poison sumac are plants that cause a rash in those allergic to them. This rash is caused by a chemical in the sap. About 50 to 70 percent of people are sensitized to this chemical and are, therefore, allergic. Virtually everyone will eventually become sensitized if repeatedly exposed. Read more Overview Diagnosis Treatment Options ... Contact UPMC Supplemental content provided by EBSCO Publishing Terms and Conditions

122. Poison Ivy Soap - Www.burtsbees.com Earth Friendly All Natural Personal Care Products. http://www1.burtsbees.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=100

123. Student Health & Wellness Center : Poison Ivy poison ivy, poison oak, and poison sumac all belong to the same genus Rubber or latex gloves are not effective against poison ivy or poison oak. http://www.jhu.edu/~shcenter/poisonivy.html

Home Patient Information For more information: Poison plants: ivy, sumac, oak Provided by the American Academy of Dermatology "Leaves of three...let it be." POISON IVY, POISON OAK, AND POISON SUMAC As you venture outdoors this summer, you may encounter these aggravating plants. Be wary of them! They are the most common plants that cause skin rashes. Don't let them ruin your summer vacation! Poison ivy, poison oak, and poison sumac all belong to the same genus Toxicodendron All three plants produce an oil, urushiol , which can penetrate the skin very easily. This oil is not really "poisonous". However, if you come into contact with it, you can develop an allergic reaction. The allergic reaction is usually in the form of a bothersome skin rash. Frequently Asked Questions How do I get "poison ivy"?

124. Plant Profile For Toxicodendron Radicans (eastern Poison Ivy) Click on this Photograph of Toxicodendron radicans (eastern poison ivy) to enlargeit and eastern poison ivy, Toxicodendron radicans ssp. eximium http://plants.usda.gov/cgi_bin/plant_profile.cgi?symbol=TORA2

125. Contact-Poisonous Plants Of The World s and images of plants that are harmful when touched, including powerful tropical relatives of stinging nettle and poisonivy....... http://mic-ro.com/plants/

Contact-Poisonous Plants of the World M. Rohde Auf Deutsch Don't Touch! A lot of plants are highly poisonous when ingested, everybody knows this. It is a remarkable fact, however, that simply touching a plant can also lead to serious hazards to health. The Stinging Nettles are notorious throughout the world but rather harmless. In the tropics there are tall trees which are relatives of the Stinging Nettles. They can cause much more severe skin irritation and longer-lasting pain. The infamous Poison Ivy of North America has an allergy-inducing effect that makes it more skin-irritating the more often a person gets in contact with it. Just like the Stinging Nettle, the Poison Ivy has more powerful relatives in the tropics. These trees are reported to be so powerful that even raindrops falling from them can irritate the skin. Other plant species can cause blindness through the smoke of burning wood or from rubbing the eyes after touching leaves. This document, as the first of its kind, gives a concise overview of contact-poisonous plants. Information was scattered across many different sources like scientific works about dermatology or botany, regional field guides, travel literature, or magazines. The rare scientific literature on the subject lists thousands of plants and describes in medical detail the effects on workers who were exposed to the same plant species for years. Only a small number of those plants is dangerous after an occasional contact, however. This means that information relevant for travellers is hidden amid lots of other information. In this document, information from many sources has been selected and densified to provide a comprehensible overview of the most widespread and the most powerful contact-poisonous plants around the world that may be of interest for the traveller.

126. Toxicodendron - Wikipedia, The Free Encyclopedia The best known member is poisonivy which is practically ubiquitous throughout While leaves of poison-ivy and poison-oak usually have three leaflets, http://en.wikipedia.org/wiki/Poison_oak

You did it! Over US$240,000 was donated in the 21 day fund drive. Thank you for your generosity! You are still welcome to make a donation or purchase Wikimedia merchandise Toxicodendron From Wikipedia, the free encyclopedia. (Redirected from Poison oak Toxicodendron Scientific classification Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Sapindales Family: Anacardiaceae Genus: Toxicodendron Miller Species See text. 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 The plants are quite variable in appearance. The leaves may have smooth, toothed or lobed edges, and all three types of leaf edge may be present in a single plant. The plants grow as creeping vines, climbing vines, shrubs, or, in the case of Lacquer Tree and Poison Sumac, as trees. While leaves of Poison-ivy and poison-oaks usually have three leaflets, sometimes there are five or, occasionally, even seven leaflets. Leaves of Poison Sumac have 7-13 leaflets, and of Lacquer Tree, 7-19 leaflets.

127. Yard Garden Brief POISON-IVY ITS CONTROL Poison-ivy poisonivy (Toxidendron radicans) is a woody perennial shrub or vine that poison-ivy can be distinguished from other plants by its leaves which are http://www.extension.umn.edu/projects/yardandgarden/ygbriefs/h501poisonivy.html

Poison-ivy ( Toxidendron radicans ) is a woody perennial shrub or vine that spreads by underground runners and by seeds. It grows in all types of soil and under all conditions of sun and shade. Poison-ivy can be distinguished from other plants by its leaves which are always divided into three leaflets. It is these which are referred to in the old warning, "Leaves of three, let it be." These leaves, each consisting of three leaflets, alternate on the stem. Each leaflet is oval-shaped, pointed at the tip, and tapered at the base. The middle leaflet has a longer leaf stem than the two side ones. Leaflets may be slightly lobed or coarsely toothed. When some leaflets are lobed, people may call these plants "poison-oak," but true poison-oak does not grow in Minnesota. There are only variations of poison-ivy. The leaves' surfaces may be smooth or hairy, glossy or dull. They can vary in color from yellowish-green and green to reddish-green. Poison-ivy fruits, which develop in fall, are small white berries with sunken ribs. Poison-ivy is best controlled with an herbicide containing triclopyr, a woody brush-killer. It should be applied directly to the leaves of the poison-ivy, not soaked into the ground. When used according to directions, this herbicide should not injure established grasses, only broad-leafed plants.

128. Poison Oak Botanical, toxicological and ethnobotany information, with photographs, onToxicodendron diversilobum and other related and unrelated plant species http://waynesword.palomar.edu/ww0802.htm

Wayne's Word Index Noteworthy Plants Trivia ... Search Volume 8 (Number 2) Summer 1999 Poison Oak More Than Just Scratching The Surface Modified from article in Herbalgram (American Botanical Council) Volume 34: 36-42, 1995 by W.P. Armstrong and W.L. Epstein, M.D. P oison oak ( Toxicodendron diversilobum ) and its eastern counterpart poison ivy ( T. radicans ) are two of the most notoriously painful plants in North America. [Note: These species were formerly placed in the genus Rhus See Raging Brush Fire In Southern California Smoke Cloud Over Southern California Brush Fire T he first published records of poison ivy in North America date back to the early 1600s in the writings of Captain John Smith. In fact, Captain Smith included an illustration of the plant and originated the common name because of its superficial resemblance to English ivy ( Hedera helix ) or Boston ivy ( Parthenocissus tricuspidata ). The name ivy or "hiedra" was also used by early Mexican settlers in California who mistakenly thought poison oak was a kind of ivy. A little-known subspecies of poison ivy, T. radicans

129. Poison Oak Management Guidelines--UC IPM UC home and landscape guidelines for control of poison Oak. (Published 5/01) http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7431.html

UC IPM Home Search How to Manage Pests Agriculture Degree-days Educational Resources Workshops and events PCA exam helper Pesticide safety Research and IPM Grants programs Funded-project results What's new Announcements ... Printer-friendly version How to Manage Pests Pests in Landscapes and Gardens More landscape pests Pests of homes, people, pets About Pest Notes Poison Oak Published In this Guideline: Identification Impact Biology Management ... Glossary Poison oak or western poison oak, Toxicodendron diversilobum, is native to western North America, with a distribution extending from British Columbia south to the Baja California peninsula. In Washington and Oregon, poison oak is found mainly in the western regions of the states. In California it is widespread and grows in a wide range of habitats from sea level to the 5000-foot elevation, including open woodland, grassy hillsides, coniferous forests, and open chaparral. IDENTIFICATION Poison oak is a deciduous (loses leaves in winter), woody plant that can have a shrub or vine form. In open areas under full sunlight, poison oak forms a dense leafy shrub usually 1 to 6 feet in height. In shaded areas, such as in coastal redwoods and oak woodlands, it becomes a much taller

130. Poison Oak Prevention And Treatment Sawmillers share thoughts on the best preventions and cures for exposure to poisonoak. September 6, 2000. http://www.woodweb.com/knowledge_base/Poison_oak_prevention_and_treatment.html

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131. The American Academy Of Dermatology Official site of the AAD. Features news, patient information and industry updates. http://www.aad.org/

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