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  2. Sep 18, 2023 · Poison ivy has compound leaves; each leaf is composed of three leaflets. In each set of leaflets, the middle leaflet has a longer stem than the two side leaflets. The stem on the side leaflets can be so small as to be almost invisible.

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    • Urushiol, The Oily Sappy Irritant
    • Can Irritate Your Skin in All Seasons
    • Types of Poison Ivy
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    Urushiol, the oily, sappy substance which causes an allergic reaction and rash, can stay on clothing and other surfaces for two years or longer unless it’s washed away. Urushiol is produced by every part of the poison ivy plant including its: 1. leaves 2. flowers 3. berries 4. roots 5. bark 6. branches

    Poison ivy is associated with spring and summer because it’s more abundant at that time. However, don’t make the mistake of thinking that poison ivy only irritates your skin when it’s in full bloom. Most people are highly allergic to this plant throughout its entire growth cycle and in all seasons, including winter.

    There are two types of poison ivy, Eastern and Western. Despite their names, you can find both scattered throughout the country, since they interbreed. Physical characteristics of the plant to keep in mind include: 1. Both types of poison ivy look similar and have three-leaf clusters on slender stems. 2. Their leaves can vary in color from green to...

    Learn how to spot poison ivy leaves, flowers, berries, and roots in spring, summer, fall, and winter. Find out how to remove poison ivy safely and what to do if you get a rash.

    • Corey Whelan
  3. Jun 16, 2021 · Learn the features and habits of the three most common poisonous plants in North America, such as their leaves, stems, and berries. Find out how to avoid contact with urushiol, the allergen that causes the rash, and how to wash it off if you do.

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  4. May 15, 2024 · Poison ivy rash is caused by an allergic reaction to an oily resin called urushiol (u-ROO-she-ol). This oil is in the leaves, stems and roots of poison ivy, poison oak and poison sumac. Wash your skin right away if you come into contact with this oil, unless you know you're not sensitive to it.

  5. Learn the characteristics of poison ivy leaves, such as the number of leaflets, the shape, the color and the pattern. Find out how to get rid of poison ivy safely and effectively with tips and advice.

  6. May 5, 2023 · Learn how to identify and avoid poisonous plants that cause an itchy skin rash. Find out what urushiol oil is, how it affects your skin and how to treat a poison ivy rash.

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