Southern Living on MSN1y
How To Kill Poison Ivy, According To A HorticulturistPoison ivy (Toxicodendron radicans) is a vine that contains an oily resin known as urushiol. According to the Centers for ...
Poison oak rash is an allergic reaction to the leaves or stems of the western poison ... depending on the time of year. Like poison ivy and poison sumac, poison oak releases an oil called urushiol ...
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