is still in the rind. Uses Medicinal Californian Native Americans used the plant's stems and shoots to make baskets, the sap to cure ringworm, and as a poultice of fresh leaves applied to rattlesnake bites. The juice or soot was used as a black dye for sedge basket elements, tattoos, and skin darkening. An infusion of dried roots, or buds eaten in the spring, were taken by some native peoples for an immunity from the plant poisons. Chumash peoples used T. diversilobum sap to remove warts, corns, and calluses; to cauterize sores; and to stop bleeding. They drank a decoction made from the roots to treat dysentery. Cultivation Toxicodendron diversilobum can be a carefully situated component in wildlife gardens, habitat gardens, and natural landscaping. The plant is used in habitat restoration projects. It can be early stage succession where woodlands have been burned or removed, serving as a nurse plant for other species. See also Toxicodendron vernix – poison sumac Toxicodendron radicans – eastern poison ivy References Gallery External links U.S. Forest Service information: Toxicodendron diversilobum (Pacific poison oak) Calflora Database: Toxicodendron diversilobum (Pacific poison oak) Jepson Flora Project: Toxicodendron diversilobum American Academy of Dermatology – Poison Oak information Western Poison-Oak Photo Gallery All about Western poison oak (T. Diversilobum) Toxicodendron diversilobum – U.C. Photo gallery diversilobum Flora of the West Coast of the United States Flora of Baja California Flora of British Columbia Flora of California Flora of Nevada Flora of Oregon Flora of Washington (state) Flora of the Cascade Range Flora of the Klamath Mountains Flora of the Sierra Nevada (United States) Natural history of the California chaparral and woodlands Natural history of the California Coast Ranges Natural history of the Central Valley (California) Natural history of the Channel Islands of California Natural history of the Mojave Desert Natural history of the Peninsular Ranges Natural history of the San Francisco Bay Area Natural history of the Santa Monica Mountains Natural history of the Transverse Ranges Plants used in traditional Native American medicine Taxa named by Asa Gray Taxa named by John Torrey Taxa named by Edward Lee Greene Flora without expected TNC conservation status