Knowledgebase

Poison oak #931623

Asked May 14, 2026, 2:47 AM EDT

Is this poison oak?

Columbia County Oregon

Expert Response

This looks just like poison oak. OSU publication PNW 108 includes pictures and more. Each plant doesn’t look exactly the same, because of variations in the genetics of individuals and where it is growing. Sometimes it is a groundcover, or a shrub, and even a vine growing very high up tree trunks.

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