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  1. Poison Ivy, Oak, and Sumac 
    https://medlineplus.gov/poisonivyoakandsumac.html
    ... I Touch a Plant? (American Academy of Dermatology) Poisonous Plants and Work (National Institute for Occupational Safety and Health) Diagnosis and Tests Rash Evaluation (National Library of Medicine) ...
  2. Lily of the valley poisoning 
    https://medlineplus.gov/ency/article/002882.htm
    ... and leaves of the lily of the valley plant are poisonous.
  3. Dieffenbachia poisoning 
    https://medlineplus.gov/ency/article/002866.htm
    Poisonous ingredients include: Oxalic acid Asparagine, an amino acid found in this plant
  4. Mistletoe poisoning 
    https://medlineplus.gov/ency/article/002883.htm
    The poisonous ingredient is found in all parts of the plant, but especially in the leaves.
  5. Foxglove poisoning 
    https://medlineplus.gov/ency/article/002878.htm
    The poisonous substances are found in: Flowers, leaves, stems, and seeds of the foxglove plant Heart medicine (digitalis glycoside)
  6. Jimsonweed poisoning 
    https://medlineplus.gov/ency/article/002881.htm
    ... alkaloids Note: This list may not include all poisonous ingredients.
  7. Caladium plant poisoning 
    https://medlineplus.gov/ency/article/002863.htm
    ... plant Note: All parts of the plants are poisonous if large amounts are eaten.
  8. Jack-in-the-pulpit poisoning 
    https://medlineplus.gov/ency/article/002870.htm
    The poisonous ingredient is: Calcium oxalate
  9. Rhubarb leaves poisoning 
    https://medlineplus.gov/ency/article/002876.htm
    Poisonous ingredients include: Anthraquinone glycosides (possible) Oxalic acid
  10. Yew poisoning 
    https://medlineplus.gov/ency/article/002877.htm
    Poisonous ingredients include: Taxine Taxol
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