This article describes poisoning caused by consumption of plant material from Jack-in-the-pulpit.

• oxalic acid
• asparagine, a protein found in this plant

Note: The roots are the most dangerous part of the plant.

• Arisaema triphyllum (Jack-in-the-pulpit)

• body as a whole
  • burning in mouth
  • swelling of tongue
  • swelling of mouth
  • slurred speech
• eyes, ears, nose, and throat
  • burning pain in the throat
  • teary eyes
• gastrointestinal
  • nausea and vomiting
  • diarrhea

Wipe out the mouth with a cold, wet cloth. Give milk to drink.

Wash skin with water. If eye involvement, irrigate eyes with water.

Determine the following information:

• the patient's age, weight, and condition
• the name of the plant and the parts eaten
• the time it was swallowed
• the amount swallowed

They will instruct you if it is necessary to take the person to the hospital. See Poison Control centers for telephone numbers and addresses. Bring the plant with you to the emergency room for identification.

The symptoms will be treated.

Plants containing oxalic acid may cause swelling severe enough to block the airway, but this is very rare.