Identify poison ivy, oak, and sumac and learn what to do if a rash appears after spending time outdoors in Lenoir. In Lenoir, outdoor activities are part of everyday life. Trails at McGalliard Falls Park and nearby wooded areas provide plenty of space for walking, jogging, or playing with kids. Sometimes, a simple brush against a plant can result in an itchy rash hours later. Poison ivy, poison oak, and poison sumac are common causes ...