What are the characteristics of poison oak and how can one identify and avoid it?

Poison oak is a plant with three shiny leaves that can cause a red, itchy rash when touched. It grows as a shrub or vine in wooded areas. To identify and avoid poison oak, look for its distinctive leaves and learn to recognize it. Wear long sleeves and pants when hiking in areas where poison oak may be present, and wash any exposed skin with soap and water if you come into contact with it.