All photographs copyright (2003-2013) by Kris H. Light

<strong>Poison Oak</strong>
<em>Toxicodendron diversilobum</em> / Sumac Family
June 23, 2006<br>
This is one of a couple of plants that every visitor to California needs to recognize (the other is Stinging Nettle). Like its eastern relative, Poison ...
Poison Oak
Toxicodendron diversilobum / Sumac Family
June 23, 2006

This is one of a couple of plants that every visitor to California needs to recognize (the other is Stinging Nettle). Like its eastern relative, Poison Ivy, it can grow as a vine or a small shrub. It also contains urushiol, the itch-inducing oil that causes skin reactions in many people. In the fall, the leaves turn a beautiful red and orange, setting the hillsides ablaze in color.

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