Dormant & "old growth"
Deb's Park, Los Angeles
Poison oak comes from a common leaves resemblance to white oak leaves. It also produces skin- irritating oil which causes allergic reaction to some people.
Also known as toxicodendron diversilobum, it can cause allergic rashes. The leaves are also divided into three.
bright colorful leaves (red/yellow/some green), darker in center of leaves, leaves of three, spread out
Toxicodendron diversilobum, commonly named Pacific poison oak or western poison oak (syn. Rhus diversiloba), is in the Anacardiaceae family (the sumac family).