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Skunk Cabbage

Traditionally used for: Asthma and wheezing (traditional claim only); Chesty cough and bronchitis (traditional claim only).

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What is Skunk Cabbage? Skunk cabbage is a swamp plant of eastern North America. Crushed leaves smell of rot and skunk. The root and rootstock were the parts used by old American herbal doctors. The plant is a real irritant. It carries needle-shaped crystals of calcium oxalate that burn the mouth and throat. Because of that risk, this page gives no dose and no way to prepare it. Tradition claimed it eased coughs, asthma and spasms. Human evidence for any of this is essentially absent. Long traditional use is not proof that a remedy works, and it is not proof that it is safe. How does Skunk Cabbage work? No one has shown how skunk cabbage works in people. Old writers called it an antispasmodic (something that eases muscle cramping) and an expectorant (something that loosens mucus). Those labels came from bedside impression, not from testing. Lab work has found plant compounds with mild anti-inflammatory activity in cells. Whether that does anything in a person's lungs is unknown. No trial has tested the idea in humans. The harmful effect is better understood. Calcium oxalate crystals pierce the soft lining of the mouth and throat. That is a direct injury, reported in people and animals that chew the raw plant. What forms does Skunk Cabbage come in? Skunk cabbage is uncommon in shops today. Where it is sold, you may see it as a dried root powder, a tincture (an alcohol extract), or a capsule. Older cough blends paired it with lobelia or wild cherry bark. A few herbal catalogues still list such mixtures. The fresh root and leaves are also foraged. Eating fresh plant is the main way people get hurt. This page does not describe any preparation. Quality is a problem. Wild-dug roots are easy to mix up with other plants, and labels are often vague. Where it comes from: Skunk cabbage was a fixture of 19th-century American folk and Eclectic practice. Old books list it as Dracontium or meadow cabbage. Eclectic doctors gave the dried root for asthma, whooping cough, bronchitis and nervous twitching. Some also used it for rheumatism (joint pain and stiffness). Native peoples of the north-east used the plant in several ways, including as a poultice on sore joints. The written records of exact use are patchy. It appeared in the United States Pharmacopoeia in the 1800s. It was later dropped. It has no place in mainstream care today.

Helps

What does Skunk Cabbage help with? Asthma and wheezing: This was the headline claim of the Eclectic doctors. They believed the dried root relaxed tight airways. No clinical trial supports it. Asthma can kill, and modern inhalers are proven. Swapping proven care for this plant is dangerous. Bronchitis and chesty cough: Tradition used it to loosen mucus and quiet a cough. It often sat in blended cough syrups. There is no human evidence that it helps either symptom. Most chest infections settle on their own, which makes old reports easy to misread. Whooping cough: Nineteenth-century writers used it for the long coughing fits of whooping cough. That was before vaccines and antibiotics. No modern evidence supports this use. Whooping cough in a baby is a medical emergency and needs a doctor, not a herb. Nervous restlessness and muscle spasm: Folk use treated it as a calming, antispasmodic (cramp-easing) herb. The plant does contain serotonin, a body signalling chemical. That fact does not show a calming effect. Serotonin taken by mouth does not pass easily into the brain. No human study has tested this use. Rheumatic joint pain, used on the skin: Poultices of the root or leaf were laid on sore joints. The plant is a skin irritant, and warmth or redness may have been mistaken for healing. There are no trials. The sap can blister skin and badly hurt the eyes.

Skunk Cabbage

Quick Facts

  • What it is: A North American swamp plant whose root was used in old American folk and Eclectic medicine, and which burns the mouth because of sharp calcium oxalate crystals.
  • Main uses: Asthma and wheezing (traditional claim only), Chesty cough and bronchitis (traditional claim only), Nervous spasm (traditional claim only)
  • Active ingredients: Calcium oxalate crystals (raphides), Serotonin, Pungent volatile oils, Tannins, Resins
  • Forms: Dried root powder, Tincture (alcohol extract), Capsule, Poultice in historic use
  • Time to effect: Not established; may do nothing
  • Side effects: Burning mouth and throat, swelling, drooling, vomiting; swelling can block breathing.
  • Pregnancy & breastfeeding: Avoid in pregnancy and while breastfeeding.

Educational information, not medical advice — ask your doctor or midwife.

What is Skunk Cabbage?

Skunk cabbage is a swamp plant of eastern North America. Crushed leaves smell of rot and skunk. The root and rootstock were the parts used by old American herbal doctors.

The plant is a real irritant. It carries needle-shaped crystals of calcium oxalate that burn the mouth and throat. Because of that risk, this page gives no dose and no way to prepare it.

Tradition claimed it eased coughs, asthma and spasms. Human evidence for any of this is essentially absent. Long traditional use is not proof that a remedy works, and it is not proof that it is safe.

How does Skunk Cabbage work?

No one has shown how skunk cabbage works in people.

Old writers called it an antispasmodic (something that eases muscle cramping) and an expectorant (something that loosens mucus). Those labels came from bedside impression, not from testing.

Lab work has found plant compounds with mild anti-inflammatory activity in cells. Whether that does anything in a person's lungs is unknown. No trial has tested the idea in humans.

The harmful effect is better understood. Calcium oxalate crystals pierce the soft lining of the mouth and throat. That is a direct injury, reported in people and animals that chew the raw plant.

What forms does Skunk Cabbage come in?

Skunk cabbage is uncommon in shops today.

Where it is sold, you may see it as a dried root powder, a tincture (an alcohol extract), or a capsule.

Older cough blends paired it with lobelia or wild cherry bark. A few herbal catalogues still list such mixtures.

The fresh root and leaves are also foraged. Eating fresh plant is the main way people get hurt. This page does not describe any preparation.

Quality is a problem. Wild-dug roots are easy to mix up with other plants, and labels are often vague.

Where it comes from:

Skunk cabbage was a fixture of 19th-century American folk and Eclectic practice. Old books list it as Dracontium or meadow cabbage.

Eclectic doctors gave the dried root for asthma, whooping cough, bronchitis and nervous twitching. Some also used it for rheumatism (joint pain and stiffness).

Native peoples of the north-east used the plant in several ways, including as a poultice on sore joints. The written records of exact use are patchy.

It appeared in the United States Pharmacopoeia in the 1800s. It was later dropped. It has no place in mainstream care today.

If this is an emergency

Some reactions to Skunk Cabbage need urgent care. Call your local emergency number or go to an emergency department straight away — do not wait to see whether it passes.

Who should avoid Skunk Cabbage?

  • Never eat or chew any part of the raw plant.
  • Do not use skunk cabbage in place of an asthma inhaler or any prescribed lung medicine.
  • Do not use it if you are pregnant or trying to become pregnant.
  • Do not use it if you are breastfeeding.
  • Never give it to a child, in any form.
  • Do not use it if you have kidney disease or have ever had a kidney stone.
  • Do not use it if you have gout, because oxalate load is an added risk.
  • Avoid it if you have a swallowing problem or a known throat narrowing.
  • Do not let the sap touch your eyes; wear gloves if you handle the plant.
  • Do not let dogs, cats or livestock eat the plant.
  • Do not use it alongside prescription medicine without asking your doctor or pharmacist.

When should you see a doctor?

Call emergency services now if you have any of these after contact with the plant:

Swelling of the tongue, lips or throat. Noisy or hard breathing. Drooling with trouble swallowing. A voice that has gone hoarse or muffled.

Go to an emergency department for severe mouth pain, repeated vomiting, or sap in the eye.

See a doctor the same day for rash, blistering, or pain passing urine. In the US you can also call Poison Control on 1-800-222-1222.

Is Skunk Cabbage legal where you live?

In the United States it may be sold as a dietary supplement, but it is not approved as a medicine by the FDA. In the United Kingdom and the European Union it is not a licensed herbal medicine, and products are rare.

Options to discuss with a clinician

Do not swap one remedy for another on your own. Take these to a doctor, respiratory nurse or pharmacist, and keep using what you were prescribed until they advise otherwise.

For asthma or wheezing, ask your doctor about inhalers and a written asthma action plan. These are proven and are the standard of care.

For a chesty cough, ask a pharmacist about simple steam, fluids and honey in adults and children over one year. Honey has modest trial support for night-time cough.

For joint pain, ask about topical anti-inflammatory gels or physiotherapy. Both have better evidence than any skunk cabbage poultice.

Graded pages for the options named above:

  • Honey — evidence grade A, traditional tier T3

Evidence grades and traditional-use labels are explained in our methodology. Nothing here is medical advice.

The evidence behind this remedy, in one page

What it is typically used for, usual dose, cautions, and the study behind it where real trial data exists.

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