Poison ivy is a plant that causes an allergic reaction in the form of a red, itchy rash when touched by skin. It is found throughout most of the United States except for in the Southwest, Alaska and Hawaii.Continue Reading
Poison ivy is vine that is often found along riverbanks and other wet areas. It is identified by its three shiny green leaves and red stem. Poison ivy secretes a sticky oil called urushiol that causes a rash from an allergic reaction called contact dermatitis. Brushing against or touching any part of the plant, including the roots, will transfer the oil, even if the plant is dead.
Poison ivy should not be burnt, as this will allow the oils to be come airborne. The oil from poison ivy can contaminate skin, clothing, pet fur and even nonporous materials such as gardening tools. Until the oils are washed off, they will continue to transfer via the items they have contaminated.
A rash from poison ivy is not contagious once it has been cleaned of the oils. Rashes from coming into contact with poison ivy can lead to fluid-filled blisters, small bumps and red streaks. Those who have a severe allergy to poison ivy may experience swelling and very large blisters that ooze.Learn more about Outdoor Plants & Flowers
The primary way to distinguish between poison oak and poison ivy is by where the plant grows. Poison oak generally grows along the West Coast of the United States, while poison ivy grows in the remainder of the states, according to About.com. Both plants have three-leaflet leaves and white berries.Full Answer >
Poison sumac does not have thorns. There are numerous species of sumac, both poisonous and non-poisonous, growing in North America, and none of the species posses thorns.Full Answer >
Poison ivy usually has a leaf made of of three shiny, oval, pointed leaflets, while poison oak leaves have lobes, says Dummies.com. The lobes of the poison oak, however, are not as deep as those of many oak trees. One problem with both of these plants is that their appearance can change from season to season or plant to plant, says Missouri Botanical Garden.Full Answer >
People kill poison ivy through natural methods such pulling it out from the roots or cutting it back and smothering it with cardboard and newspapers. Glyphosate or triclopyr are effective herbicides.Full Answer >