About Poison Ivy, Oak and Sumac

By Terry Krautwurst
Published on June 1, 2001
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PHOTO: FOTOLIA/FABFOTOS
Avoid an irritating rash by learning more about common poisonous plants and their prime habitats.

In Home Remedies for Poison Ivy, we covered common preventive measures and home treatments for itchy rashes caused by poisonous plants. Now, let’s take a closer look at four common ones.

Western Poison Oak

Toxicodendron diversilobum

Considered the poison oak by some botanists, this plants is common on the Pacific Coast (except for the Olympic Peninsula) from southern British Columbia to northern Baja California. Its three leaflets seem randomly lobed and resemble oak leaves.

Most often found as a spreading, freestanding shrub 2 to 6 feet tall, Western poison oak can also take the form of a tall, climbing vine.

Eastern Poison Oak

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