Poison sumac

Poison sumac (Toxicodendron vernix) is a woody shrub or small tree that grows in wet, swampy areas in the eastern United States. It is one of the most toxic plants in the United States, causing a skin rash upon contact.

Description

Poison sumac grows as a shrub or small tree, reaching heights of up to 20 feet. It has compound leaves with 7-13 leaflets, and the stems are red. The plant produces small greenish flowers in the spring, which develop into white or gray berries in the fall.

Toxicity

The entire plant, including the leaves, stems, flowers, and berries, contains urushiol, an oil that causes an allergic reaction in most people. Contact with the plant can cause a severe skin rash, known as contact dermatitis. The rash can be severe and long-lasting, and can spread if the oil is not immediately washed off the skin.

Treatment

Treatment for poison sumac exposure includes washing the affected area with soap and water to remove the oil, applying over-the-counter creams to relieve itching, and in severe cases, seeking medical attention. It is also important to wash any clothing or objects that may have come into contact with the plant, as the oil can remain active for a long time.

Prevention

The best way to prevent poison sumac exposure is to avoid contact with the plant. This can be achieved by learning to identify the plant and avoiding areas where it grows. Wearing long sleeves and pants can also help protect the skin.

See also

• Poison ivy
• Poison oak
• Contact dermatitis

Poison sumac Resources
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