Panorama of the San Marcos Foothills Preserve
Plants of the San Marcos Foothills Preserve

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Toxicodendron diversilobum (Poison Oak)

Common native perennial shrub or vine found along creeks and in oak woodland. Flowers are greenish-white. Blooms in winter to spring.

Toxicodendron diversilobum (poison oak). NATIVE. Pictured in winter.


Toxicodendron diversilobum (poison oak). NATIVE. Pictured in autumn.


Toxicodendron diversilobum (poison oak). NATIVE. Pictured in autumn.


Toxicodendron diversilobum (poison oak). NATIVE. Pictured in winter (before rains).