Jack-in-the-Pulpit

Arisaema triphyllum

Photo of Jack-in-the-Pulpit
Photo by Dr. John Meade, weed scientist emeritus
Rutgers Cooperative Extension

The rhizome (underground stem) of this plant which grows in wet woodland contains a compound which causes severe irritation and swelling in the mouth. The same compound is found in dumbcane and philodendron.

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County Offices

Need more information about Jack-in-the-Pulpit?
Contact your Cooperative Extension county office for answers to your questions.

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