This picture of a poison ivy look-alike shows Virginia creeper, with mature leaves, climbing a concrete post. Notwithstanding Virginia creeper's leaf of five leaflets -- as distinct from poison ivy's signature trio of leaflets -- many people perceive these vine plants to be similar to poison ivy. If you were walking briskly past a patch of Virginia creepers, the mistake would be understandable, as you might not be able to readily determine the number of leaflets without slowing down.

