Jack-in-the-pulpit Toxic?

Updated 2026-03-06| 4 min read| 4,636 found this helpful

Confirmed toxic to cats, dogs, and horses, with mild to moderate reactions expected upon ingestion

Primary toxic compound is insoluble calcium oxalates, which cause immediate irritation to mucous membranes

Common clinical signs include oral pain, swelling, excessive drooling, vomiting (excluding horses), and difficulty swallowing

FAQ

Is Jack-in-the-pulpit toxic to Humans?

Oral pain, swelling of mouth/tongue/lips, excessive salivation, difficulty swallowing, mild gastrointestinal upset (Moderate)

Is Jack-in-the-pulpit toxic to Cats?

Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing (Moderate)

Is Jack-in-the-pulpit toxic to Dogs?

Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing (Moderate)

Is Jack-in-the-pulpit toxic to Horses?

Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, difficulty swallowing, no vomiting observed (Moderate)

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Toxicity Details

Humans

Moderate

Oral pain, swelling of mouth/tongue/lips, excessive salivation, difficulty swallowing, mild gastrointestinal upset

Cats

Moderate

Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing

Dogs

Moderate

Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing

Horses

Moderate

Oral irritation, pain and swelling of mouth, tongue and lips, excessive drooling, difficulty swallowing, no vomiting observed

Toxicity Snapshot

Toxic PartsAll plant parts, especially underground corms and roots

Exposure RouteIngestion, direct contact with mucous membranes (mouth, eyes)

Toxic CompoundsInsoluble calcium oxalates

First Aid & Prevention

First 30 Minutes

• Remove all remaining plant material from the affected individual's mouth immediately
• Rinse the mouth thoroughly with cool, clean water to reduce irritation
• Offer small sips of water or milk to bind residual oxalate crystals if swallowing is unimpaired
• Monitor closely for signs of airway swelling or respiratory distress

Contact Vet Immediately

• If significant swelling of the mouth, tongue, or throat impairs breathing
• If vomiting is persistent or the affected animal shows signs of severe unmanaged pain
• If the affected individual is a horse, as equine reactions may progress rapidly
• If symptoms do not improve within 2 hours of first aid administration

Prevention

• Keep wild or potted Jack-in-the-pulpit plants out of reach of pets, livestock, and small children
• Wear protective gloves when handling the plant to avoid skin irritation from sap
• Educate foragers on proper identification to avoid confusion with edible wild root vegetables

Treatment & Prognosis

• Supportive care including prescribed pain management and antihistamines to reduce swelling
• Intravenous fluids may be administered if dehydration occurs from vomiting or inability to drink
• Rare airway support may be provided for severe cases of throat swelling

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Professional Toxicology

Scientific NameArisaema triphyllum

AliasesThree-leaved indian turnip、Devil's dear、Wake robin、Starch wort、Wild turnip、Dragon root、Bog onion、Pepper turnip、Brown dragon、Memory root

Toxicity Grade

HumansModerate

CatsModerate

DogsModerate

HorsesModerate

Target Organs

MouthTongueThroatGastrointestinal tract

Mechanism of Action

• Insoluble calcium oxalate crystals penetrate mucous membranes in the mouth, throat, and gastrointestinal tract upon ingestion, triggering immediate pain, inflammation, and swelling

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle, sheep, and goats: Moderate risk if ingested in pasture, causes identical oral and gastrointestinal irritation as seen in horses

Small mammals (rabbits, guinea pigs): High risk of severe symptoms due to small body size, may lead to life-threatening inability to eat or drink without prompt care

Confusion Risk

The following plants look similar and may be confused:

Edible Wild Turnip Brassica rapa subsp. rapa

Confused due to shared common name 'wild turnip'; Jack-in-the-pulpit has a distinct hooded flower and trifoliate leaves, while edible wild turnip has broad, hairy leaves and yellow cruciferous flowers

Wild Ginger Asarum canadense

Both grow in similar shaded woodland habitats; Jack-in-the-pulpit has three large leaves per tall stem, while wild ginger has paired heart-shaped leaves growing close to the ground

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Related Toxic Plants

Dieffenbachia

Dieffenbachia seguine

Moderate toxicity, causes severe oral irritation and soft tissue swelling

Peace Lily

Spathiphyllum wallisii

Moderate toxicity, causes oral pain, drooling, and vomiting in domestic pets

Calla Lily

Zantedeschia aethiopica

Moderate to high toxicity, may cause severe throat swelling and airway obstruction

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Data Sources

1. ASPCA Animal Poison Control

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.