Jimson Weed, Thorn apple Datura stramonium All parts Intense irritation to mucous membrane producing swelling of tongue, lips and palate, dilated pupils, nervous excitement, hallucinations, dry mouth and skin, reddened face and convulsions. Mayapple Podophyllum peltatum Rootstalk, leaves, stems and green fruit Abdominal pain, vomiting, diarrhea and pulse irregularities. Moonseed Menispermum canadense Mature fruit Convulsions, poisoning of the system. Can be fatal. Mushrooms Various species of Amanita All parts Poisonous and edible mushrooms often grow side by side and are very difficult to distinguish.
Any ingestion is potentially toxic.
Peyote Lophophora williamsii All parts Hallucinations, nausea, headache and vomiting. Skin irritation, rash and itchy blisters. Use caution if contacted. The sap will cling to clothing and or any other object it has come in contact with, so if someone later touches that object, he or she may develop a rash. Burning poison ivy or poison oak will create toxic oils that are carried by the smoke.