poison sumac

(redirected from Toxicodendron vernix)
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Related to Toxicodendron vernix: Rhus diversiloba, Toxicodendron diversiloba

poison sumac

1. A shrub or small tree (Toxicodendron vernix) of eastern North American wetlands, having compound leaves and greenish-white berries and causing a rash on contact.
2. A skin rash caused by contact with this plant.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

poi·son i·vy

, poison oak , poison sumac (poy'zŏn ī'vē, ōk, sūmak)
2. Common name for the cutaneous eruption caused by contact with these species of Toxicodendron.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Patient discussion about poison sumac

Q. is poison ivy or sumac contagious

A. if you scratch the rash and it has open sores,the pus from the sores can spread to other parts of the body and to other people as well,

More discussions about poison sumac
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References in periodicals archive ?
Shrubs of Acer rubrum, Toxicodendron vernix, Aronia melanocarpa, and Cephalanthus occidentalis are occasional on the open mat.
magellanicum, Woodwardia virginica, Chamaedaphne calyculata, Toxicodendron vernix, Acer rubrum and Vaccinium corymbosum.
The open peatland is currently dominated by Sphagnum fimbriatum, Aulacomnium palustre, Sphagnum palustre, Vaccinium macrocarpon, Thelypterus palustris, Osmunda regalis and Toxicodendron vernix. Interstitial waters of the peat have a mean pH of 6.0 and a mean conductivity of 95 [mu]MHOS.
Toxicodendron vernix forms dense stands and is nearly unavoidable when traversing these peatlands on foot, as it offers the only reliable support on the treacherous mat.
The shrub canopy in forested peatlands is dominated by Acer rubrum, Aronia melanocar pa, Ilex verticillata, Nemopan thus mucronatus, Toxicodendron vernix and Vaccinium corymbosum.
3, 1.7, 0.07, 23 -- Sassafras albidum -- -- Toxicodendron vernix 6, 1.7, 0.007, 16 -- Ulmus americana -- -- Fens Tall-Shrub bogs Species BF LCB HB Acer rubrum -- -- -- Acer saccharinum -- -- -- Amelanchier laevis -- -- -- Aronia melanocarpa -- -- -- Betula allegheniensis -- -- -- Fagus gradifolia -- -- -- Fraxinus pennsylvanica -- -- -- Juniperus communis -- -- -- Larix laricina 4, 0.9, 0.003, 50 -- -- Liriodendron tulipifera -- -- -- Nyssa sylvatica -- -- -- Pinus strobus -- -- -- Populus tremuloides 4, 0.9, 0.003, 50 26, 13, 0.11, 63 -- Prumus serotina -- -- -- Quercus palustris -- 17, 6.5, 0.02, 27 -- Salix pedicellaris -- -- -- Salix sp.