POISONOUS PARTS: All parts. Symptoms include swelling of lips, tongue, and throat. Toxic Principle: Calcium oxalate crystals.(Poisonous Plants of N.C. State)
Because of needle-like calcium oxalate crystals in the underground tuber, it is peppery to the taste and causes a strong burning reaction if eaten raw. This unpleasant property can be eliminated by cooking. American Aboriginals gathered the fleshy taproots (corms) as a vegetable. (Niering)
Garden Info: The central column of the flower, or spadix, is surrounded by a green (though in some varieties purple and white, or green and brown hooded sheath or spathe. It needs moist, rich soil, and prefers slightly acid conditions. (Johnson, L., The new Ontario Naturalized Garden, 1999)
The leaves of this plant are lush and large, and can be confused at first glance with Trillium. In the fall, the plant produces bright orange red berries. (Evergreen)
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