While not truly poisonous, they all cause a painfully itchy rash upon contact due to an oil called urushiol on their leaves, ...

which is why the saying "leaves of three, let it be" is often associated with poison ivy. The leaves are typically pointed and can vary in texture from shiny to dull, with edges that may be smooth ...

Leaves of three — let them be! You've probably heard that little rhyme about poison ivy, the plant that can cause an itchy rash ... This reaction can appear within hours of touching the plant or as ...

The rash from poison ivy can start within hours of contact or as much as 5 days later. It may take 2 to 3 weeks to heal ... Poison ivy can grow anywhere — from forests to backyards. And it's hard to ...

For most, knowledge of hazardous plants is limited to the phrase, “leaves of three, leave them be.” However, despite widespread awareness of a few common culprits, many casual outdoor enthusiasts may ...

Poison ivy contains an oil called urushiol, which causes a red, itchy rash when it transfers to the skin. Every part of the plant contains this oil, from the roots to the stem to the leaves ...

Caused by oil from poison ivy, poison oak, and poison sumac plants. The oil is found in the leaves, stems, berries and roots of the plant ... Zyrtec dosing for 6 months to 2 years: 2.5 mL (2.5 mg) ...