Krik of Black Owl Outdoors ID's the Mayapple.  Known by various common names such as: hogapple, Indian apple, mayflower, umbrella plant, the Mayapple Podophyllum peltatum, is used for it's medicinal qualities.  While the mayapple is not edible, doing so will result in a violent expulsion of fluids from the body, it has been proven to inhibit cell growth in the field of cancer research.