Toxicodendron vernix

2006-10-05T18:37:13Z

Casper2k3: JS: Reverted edits by 204.96.12.58 to last version by Sneech2

{{Taxobox
| color = lightgreen
| name = Poison Sumac
| image = Tove 002 lhp.jpg
| image_width = 250px
| image_caption = Poison Sumac leaves
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Dicotyledon|Magnoliopsida]]
| ordo = [[Sapindales]]
| familia = [[Anacardiaceae]]
| genus = ''[[Toxicodendron]]''
| species = '''''T. vernix'''''
| binomial = ''Toxicodendron vernix''
| binomial_authority = [[Carl Ernst Otto Kuntze|Kuntze]]
}}

'''Poison Sumac''' (''Toxicodendron vernix'' or ''Rhus vernix'') is a woody [[shrub]] growing to 3 m tall. All parts of the plant contain a toxic resin called [[urushiol]] that causes skin and mucous membrane irritation to humans. When burned, inhalation of the smoke causes diarrhea and other internal irritations. The [[leaf|leaves]] are pinnate, 25-50 cm long, with 7 - 13 [[leaflet]]s; the leaflets are 4-10 cm long and sometimes mistaken for individual leaves. The veins from which the leaflets grow are always red. The [[fruit]] is a small white or grey [[berry]], produced in [[panicle]]s 10-20 cm long; this distinguishes it from other [[sumac]]s which have red berries.

[[Image:PoisonSumacDrawing1.jpeg|left|thumb|Poison Sumac]]
Poison sumac grows exclusively in very wet or flooded soils, usually in [[swamp]]s and peat [[bog]]s, in the eastern [[United States]] and [[Canada]].

In the U.S., it can grow as far west as [[Wisconsin]], where it is found only in the southern part of the state. In the U.S., it is listed under the [[Federal Noxious Weed Act of 1974]], as amended (7 U.S.C. 2801 et seq.), as a "noxious weed". Most U.S. states list this plant in similar categories. It is considered one of the "U.S. Invasive Weeds" [http://plants.nrcs.usda.gov/cgi_bin/invasive_all.cgi].

===Avoidance, treatment, and safety===
''For specific information on prevention and treatment of Toxicodendron rashes, see '''[[Urushiol-induced contact dermatitis]]'''.'' <br clear = left>

==References and external links==
*[http://plants.usda.gov/java/profile?symbol=TOVE Entry for "TOVE" on PLANTS Database], [[USDA]].
*[http://www.dnr.wi.gov/org/land/Forestry/treeid/TreePgs/toxicodendronvernix.htm Wisconsin page for poison sumac].
*[http://www.henriettesherbal.com/faqs/medi-2-7-poison-ivy.html Poison ivy / oak / sumac] in "The Medicinal Herb FAQ".
*[http://www.poison-sumac.org The Poison Sumac Page] Photos and facts about poison sumac.
*[http://waynesword.palomar.edu/ww0802.htm Poison Oak] at ''Wayne's Word''

[[Category:Sapindales]]

Wikipedia - Benutzerbeiträge [de]

Toxicodendron vernix