A helpful old saying is “leaves of three, let it be,” according to the U.S. Centers for Disease Control and Prevention. But poison oak may have more than three leaves, and depending on the ...

They also differ from poison oak, another rash-causing plant. Virginia creeper has five leaves, poison ivy has three, and poison oak usually has three -- though it can have more. (Credit ...

Poison oak is a shrub that grows on the west coast and southeast region of North America. These poisonous plants have leaves that usually: Sometimes, there might be a visible black substance ...

Poison ivy, poison oak, and poison sumac are three plants notorious for causing itchy, uncomfortable rashes that can turn a ...

It doesn't matter what part of the poison oak plant you touch. The leaves, stem, and roots all contain urushiol, which is the oil that triggers skin irritation and causes a rash. If you are ...