Species of poison ivy ( Toxicodendron diversilobum ) native to western North America and classified in the sumac (or cashew) family.
Like many other lobe-leafed plants commonly called oak, poison oak is not an oak tree (genus Quercus ).
Species of poison ivy ( Toxicodendron diversilobum ) native to western North America and classified in the sumac (or cashew) family.
Like many other lobe-leafed plants commonly called oak, poison oak is not an oak tree (genus Quercus ).
Britannica Concise Encyclopedia. Краткая энциклопедия Британика. 2012