| http://www.w3.org/ns/prov#value | - However, the most common problems with poisonous plants arise from contact with the sap oil of several ever-present native plants that cause an allergic skin reaction???poison ivy, poison oak, and poison sumac.Poison ivy, poison oak, and poison sumac release oil, urushiol, when the leaf or other plant parts are bruised, damaged, or burned.
|
