Follow the same steps to permanently get rid of poison oak, the counterpart of poison ivy in the western part of the United States. Homemade treatments are appealing if you are trying to avoid ...

Western poison ivy (Toxicodendron rydbergii) and western poison oak (Toxicodendron diversilobum) are native to California, although poison oak is far more prevalent.

Western poison ivy (Toxicodendron rydbergii) and western poison oak (Toxicodendron diversilobum) are native to California, although poison oak is far more prevalent.

Western poison ivy (Toxicodendron rydbergii) and western poison oak (Toxicodendron diversilobum) are native to California, although poison oak is far more prevalent. The former grows as a vine or ...