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Urushiol-induced contact dermatitis (also called Toxicodendron dermatitis or Rhus dermatitis) is a type of allergic contact dermatitis caused by the oil urushiol found in various plants, most notably sumac family species of the genus Toxicodendron: poison ivy, poison oak, poison sumac, and the Chinese lacquer tree. [1]
Poison ivy always grows with groups of three glossy, pointed leaflets on leaves that alternate along the branch (in contrast to similar looking leaves of boxelder which has opposite leaves). Poison oak has a similar appearance, but with larger and more rounded lobes, with a light, velvety pubescence and grow in groups of 3, 5, or 7. Poison ...
Poison ivy is a type of allergenic plant in the genus Toxicodendron native to Asia and North America. Formerly considered a single species, Toxicodendron radicans , poison ivies are now generally treated as a complex of three separate species: T. radicans , T. rydbergii , and T. orientale .
In areas where desirable plants also reside, hand pulling the poison ivy may be the best control
Anybody working outdoors needs to know what poison ivy looks like. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach ...
Remember the old axiom, “Leaves of three, leave it be.” For premium support please call: 800-290-4726 more ways to reach us
Leaves may be shiny or dull, and the color varies with the season. Vines grow almost straight up rather than wrapping around their support and can grow to 8–10 m in height. In some cases, Poison ivy may entirely engulf the supporting structure, and vines may extend outward like limbs so that it appears to be a Poison ivy "tree".
These five professional methods let you remove poison ivy in your yard quickly and naturally. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ...