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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 .
The deciduous leaves of T. orientale are trifoliate and grow to be 3–10 centimetres (1 + 1 ⁄ 4 –4 in) in length. Young branches are covered with small brown hairs that turn into red lenticels as the branches mature. T. orientale flowers from May to June. The small yellow-green flowers grow in groups from the leaf axils. From August to ...
Toxicodendron radicans, commonly known as eastern poison ivy [3] or poison ivy, is a species of allergenic flowering plant. It has numerous subtaxons and forms both vines and shrubs. Despite its common name, it is not a true ivy, but rather a member of the cashew and pistachio family Anacardiaceae.
"The telltale signs of poison ivy are the linear streaks that form on the arms and legs that develop into blisters," Dr. Jamehdor says. "This has to do with the common way patients come in contact ...
Poison ivy oils can linger on anything that touches the plant for a long time — basically until whatever it touches has been washed — according to the U.S. Food and Drug Administration. That ...
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 won't go away overnight, but with the right creams, strategies and pills, you can take the misery away fast. ... contains triple purified petrolatum to form a breathable seal over the ...
Unlike Toxicodendron radicans (eastern poison ivy), which often appears as a trailing or climbing vine, T. rydbergii is a shrub that can grow to 1 m (3 ft) tall, rarely up to 3 m (10 ft). The leaves are trifoliate and alternate. The leaflets are variable in size and shape, and are usually 15 cm (6 in) long, turning yellow or orange in autumn.