Persicaria bistorta, bistort, European bistort

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 13 min read

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Article Summary

Key Takeaways

This article explains Bistort Facts in simple medical language.
This article explains Bistort Scientific Classification in simple medical language.
This article explains Traditional uses and benefits of Bistort in simple medical language.
This article explains Bistort Tea Benefits in simple medical language.

Educational health guideWritten for patient understanding and clinical awareness.

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Definition

Persicaria bistorta, commonly known as bistort or European bistort, is a species of flowering plants in the dock family Polygonaceae, previously included in the genera Polygonum or Persicaria. Some of the most common names given to it are snakeroot, snake-root, snakeweed, Easter-ledges, Common bistort, poor man’s cabbage, oderwort, meadow bistort, adderwort, osterick, pink pokers, English serpentary, dragonwort, Easter mangiants, Easter giants, easterman giants, pudding grass, passion dock, sweet dock, patience dock, Passions, Red Legs and Sweet Dock. The plant is a native of Europe but is often cultivated and has become naturalized in other parts of the world such as in the United States in New England. It is typically found growing in moist meadows, nutrient-rich wooded swamps, forest edges, wetlands, parks, gardens and disturbed ground. Genus name comes from the Latin persica meaning peach-like and sagittata meaning barbed or arrow-shaped in reference to the shape of the leaves.

Bistort Facts

Name	Bistort
Scientific Name	Persicaria bistorta
Native	Europe and north and west Asia
Common Names	Bistort, European bistort, snakeroot, snake-root, snakeweed and Easter-ledges, Common bistort, snakeweed, poor man’s cabbage, oderwort, meadow bistort, adderwort, osterick, pink pokers, English serpentary, dragonwort, Easter mangiants, Easter giants, easterman giants, pudding grass, passion dock, sweet dock, patience dock, Passions, Red Legs, Sweet Dock
Name in Other Languages	Arabic: Angubâr, Anârif Chinese : Quan can (拳参), Quan liao (拳蓼), Zi can Danish: Slangeurt, Almindeling slangeurt Dutch: Adderwortel English: Common bistort, Snake weed, Snake root, Adder-wort, meadow bistort Estonian: Ussitatar Finnish: Konnantatar, Isokonnantatar French: Renouée bistorte, Serpentaire, Serpentaire rouge, Bistorte, Feuillotte, Andrelles, Bistorte officinale, Langue de Bœuf German: Schlangen-Knöterich, Schlangenknöterich, Matterknöterich, Wiesenknöterich Hindi: Amli, Kutrya Icelandic: Slöngusúra Italian: Poligono bistorta, Poligono ritorto, Bistorta Polish: Rdest wężownik Russian: Gorec zmejnyj, горец змейный Swedish: Stor ormrot Turkish: Ancubar, Kurd pençesi, Çiançik
Plant Growth Habit	Herbaceous, perennial, flowering plant
Growing Climate	Typically found growing in moist meadows, nutrient-rich wooded swamps, forest edges, wetlands, parks, gardens and disturbed ground, field, hilly grasslands, meadows
Soil	Best grown in organically rich, consistently moist, moisture-retentive soils rich in silicic acid
Plant Size	75 cm (30 in) tall by 90 cm (35 in) wide
Root	Fleshy and cylindrical, thick, twisted rootstock. It has a brownish-black color on the outside, while internally its color is red.
Stem	Simple and erect, cylindrical, knotted at the joints, striated, smooth unbranched and hairless
Leaf	Lanceolate, oblong-ovate or triangular-ovate in shape. They are bluish green, longer near the base, and becoming smaller higher up the stem.
Flowering Periods	June and July
Flower	Flowers are pink with five perianth segments, eight stamens, three fused carpels and three free styles
Fruit Shape & Size	Seed capsule is a triangular pointed glossy nut containing a single seed and surrounded by a persistent calyx
Fruit Color	Black
Taste	Bitter, Astringent (Root) Sour (Leaves)
Seed	Shiny, dark brown and triangular
Plant Parts Used	Root, rhizome, Leaves
Available Forms	Decoction, tincture or a powder

Bistort Scientific Classification

Scientific Name:Persicaria bistorta

Rank	Scientific Name & (Common Name)
Kingdom	Plantae (Plants)
Subkingdom	Tracheobionta (Vascular plants)
Infrakingdom	Streptophyta (land plants)
Superdivision	Spermatophyta (Seed plants)
Division	Magnoliophyta (Flowering plants)
Class	Magnoliopsida (Dicotyledons)
Subclass	Caryophyllidae
Order	Polygonales
Family	Polygonaceae (Buckwheat family)
Genus	Polygonum L. (knotweed)
Species	Polygonum bistorta L. (meadow bistort)
Synonyms	Bistorta abbreviata Kom Bistorta carnea (K.Koch) Kom Bistorta elliptica (Willd. ex Spreng.) V.V.Petrovsky, D.F.Murray & Elven Bistorta ensigera (Juz.) Tzvelev Bistorta lapidosa Kitag Bistorta major Gray Bistorta major subsp. carnea (K.Koch) Soják Bistorta major subsp. cordifolia (Turcz.) Soják Bistorta major subsp. elliptica (Willd. ex Spreng.) Bistorta major subsp. ensigera (Juz.) Soják Bistorta major subsp. nitens (Fisch. & C.A.Mey.) Soják Bistorta major var. ovata Nakai ex H.Hara Bistorta major var. pacifica (Petrov ex Kom.) H.Hara Bistorta major subsp. plumosa (Small) H.Hara Bistorta nitens (Fisch. & C.A.Mey.) Kom Bistorta officinalis Delarbre Bistorta officinalis subsp. japonica (H.Hara) Yonek Bistorta officinalis subsp. pacifica (Petrov ex Kom.) Yonek Bistorta pacifica (Petrov ex Kom.) Kom. ex Nakai Bistorta pacifica var. tomentella (Kom.) Tzvelev Bistorta pacifica f. velutina Kitag Bistorta plumosa (Small) Greene Bistorta subauriculata Kom Bistorta vulgaris Hill Bistorta vulgaris var. nitens (Fisch. & C.A.Mey.) Nakai Bistorta vulgaris var. pacifica (Petrov ex Kom.) Miyabe Colubrina intorta Montandon Polygonon bistortum St.-Lag Polygonum bistorta L Polygonum bistorta subsp. plumosum (Small) Hultén Polygonum bistorta var. plumosum (Small) B. Boivin Polygonum bistortum Dulac Polygonum lapidosum (Kitag.) Kitag Polygonum plumosum Small

Plant Description

Bistort is an herbaceous, perennial, flowering plant that grows about 75 cm (30 in) tall by 90 cm (35 in) wide. The plant is typically found growing in moist meadows, nutrient-rich wooded swamps, forest edges, wetlands, parks, gardens and disturbed ground, field, hilly grasslands and meadows. It is best grown in organically rich, consistently moist, moisture-retentive soils rich in silicic acid. The plant has fleshy and cylindrical, thick, twisted rootstock. It has a brownish-black color on the outside, while internally its color is red. Stem is simple and erect, cylindrical, knotted at the joints, striated, smooth unbranched and hairless.

Leaves

The leaves which spring directly from the upper side of the root system are oval with heart-shaped bases of a bluish-green cooler, on the upper sides and ash grey often tinged with purple beneath. Both the leaf stalks and the leaf blades are about six inches (15 cm) long. The upper part of the leaf stalk is winged. Those of the stem are all smaller, clasping and almost stalkless, each as long membranous stipule.

Flower

The flowers are arranged in a terminal, dense, cylindrical spike. Each tiny individual flower is supported on a very short stalk, with shining, serrate membranous bractea (very small bracts) at the base. Each flesh-pinkish flower consists of five colored sepals, eight stamens, and an ovary of two or three styles. Flowers are grouped in two’s, one flower complete, the other with normal stamens but only a rudimentary ovary. The styles of this complete flower do not mature and become receptive of pollen from visiting insects, till their stamens have shed their pollen and fallen, hence cross-fertilization is ensured. Flowering normally takes place from June and July.

Fruit

The fruit (seed capsule) is a triangular pointed nut containing a single seed and surrounded by a persistent calyx. Birds often feed on the seeds, which were once utilized to feed and fatten poultry.

Traditional uses and benefits of Bistort

It has also been used traditionally for medicinal purposes. Roots are rich in tannic and gallic acids and both these and the leaves have been used to treat wounds.
Root of Bistort can be used to produce an astringent that was used in medicine.
It is useful to cure bleeding disorders whether internal or external.
It is helpful to prevent hemorrhages from the lungs and stomach.
It helps to alleviate nose bleeds and nasal polyps.
It is used for the treatment of fever.
It is good herbal cure for Purelent Otorrhea.
An infusion of its plant is used as a mouthwash to treat oral problems like bleeding gums, mouth ulcers, swollen gums, stomatitis, sore throat and looseness of teeth.
Gargle with bistort is effective in curing these mouth problems.
It is potent for curbing liver ailments like jaundice.
It is helpful in curing dysentery and diarrhea.
It is effective in killing intestinal worms.
It is beneficial in treating bowel complaints and cholera.
It is a good herbal treatment for urinary incontinence.
Decoction prepared from bistort is significant for alleviating menstruating pain and leucorrhea in women.
It is a good herbal remedy for skin infection, skin eruptions, measles, and burns.
It arrests bleeding in wounds and cuts.
Make a lotion of the herb to get fast relief and apply to the skin for treating ulcers.
It is effective in curbing insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">diabetes.
Herb has also been used to treat dysentery, cholera, gastritis, cystitis and heavy menstrual bleeding.
External uses include the treatment of inflamed mucous membranes and skin disorders, burns, sore nipples, gingivitis, bleeding gums, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation of the pharynx (pharyngitis), vaginal discharge, hemorrhoids and anal fissures.
To treat diarrhea it may be used with other astringent herbs such as agrimony (Agrimonia eupatoria), spotted geranium (Geranium maculatum) or English oak (Quercus robur).
It was traditionally used to treat infectious diseases, to stop bleeding and to treat snake bites.
Herb may be useful as an herbal remedy for ulcers, gastritis, enteritis and irritable bowel syndrome.
Bistort is also used to treat urinary tract disorders such as cystitis and incontinence.
Traditionally, boiling the roots made a wine, which was then used for curing dysentery and diarrhea, impeding vomiting, controlling excessive menstruation, and curing infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation of the mouth and throat.
Herb is also used in the form of an effective gargle and mouthwash to cure spongy gums, sore throats and canker sores.
Powder obtained by pulverizing the dried out herb may be applied directly to any wound to stop bleeding.
Bistort may also be used in the form of a douche for healing erosion and infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation of the vagina and cervix.
Being a potent astringent, bistort is very helpful in treating bedwetting.

Bistort Tea Benefits

Bistort tea benefits believed to be imparted by this brew:

Bistort tea may help in the treatment of diarrhea, dysentery and irritable bowel syndrome.
Bistort tea may aid in the treatment of diverticulitis.
Bistort tea may help in the treatment of oral and tongue inflammations. It may also help fight pharyngitis and sore throat.
Bistort tea may help in the treatment of jaundice.
Bistort tea may aid in fighting measles and smallpox.
Bistort tea may help in fighting hemorrhoids.
Bistort tea may help ease menstrual bleeding.
Bistort tea, applied topically, may help in the healing of wounds, skin ruptures and burstings.
Bistort tea may help expel worms.

Ayurvedic Health benefits of Bistort

External Bleeding: Make a paste of the leaves. Apply as a poultice to the bleeding Part.
Gum disease: Put 2 tbsp rootstock in a cup of water and boil for 8-10 minutes. Use it as a mouthwash for gum problems and inflammations of the mouth.
Wounds: Take 2 tbsp rootstock of bistort and a cup of water. Boil them together for 10 minutes. Use as a wash for wounds and external ulcers. OR Use the rootstock to make a poultice for wounds.
Sore Throat: Use one tbsp bistort rootstock with half cup of water. Boil for 5-7 minutes. Take a mouthful at a time, half cup a day. OR Use it lukewarm as a gargle.
Small Pox: Prepare a decoction of the leaves of Bistort. Sponge the whole body with this water.

Culinary Uses

Plant was used to make a bitter pudding in Lent from a combination of the plant’s leaves, oatmeal, egg and other herbs in Northern England.
It is the principal ingredient of dock pudding or Easter-Ledge Pudding.
Young leaves can be used in salads or cooked and prepared like spinach.
The rhizome is known to have high starch content and is said to be very tasty and nutritious.
Reddish-colored roots may be treated like potatoes and used in soups, stews or roasted.
Roots may be dried into a powder and used to make bread flour.
Bistort may also be used to make a tea for use as a general tonic and health benefits.
Roots of bistort are edible raw or after being roasted over fire. The flavor of roasted bistort root reminds one of chestnuts.
Dry seeds of bistort are also roasted and consumed in the form of cracked grain.

Dosage and Administration

A gargle, to treat infection in the mouth and throat, can be made by using one or two grams of the dried rhizomes to one cup of warm water. It should then stand and brew for five hours.

Medicinally, bistort is used in the form of decoction and tincture.

Decoction: To prepare a decoction from bistort add one teaspoonful of the dried out herb to one cup (250 ml) of water and boil the mixture. Seethe it for about 10 to 15 minutes and then tendon. সহজ বাংলা: মাংসপেশি/টেনডনে টান।" data-rx-term="strain" data-rx-definition="A strain is injury to a muscle or tendon. সহজ বাংলা: মাংসপেশি/টেনডনে টান।">strain the liquid. For best results, this decoction should be drunk thrice every day. It can also be used externally in the form of a gargle or mouthwash.

Tincture: The tincture prepared from bistort needs to be taken in dosage of 2 ml to 4 ml thrice every day.

Other facts

Bistort has been cultivated both as an ornamental plant and as a vegetable, its roots, leaves and young shoots being steamed or boiled.
Root is a useful source of food in times of famine.
Herb is also useful in treating ailments in children and is safe for use when used in correct dosage amounts.

Precautions

Excess use may cause Nausea, stomach disorders and liver disorders.
Large dosages of the herb may cause irritation of the digestive tract, constipation, nausea and vomiting.
Take medications at least one hour prior to consuming bistort.
Consuming many bistorts may aggravate rheumatism, gout, arthritis and kidney stones.
It is essential for pregnant women to consult their physician prior to using bistort.

References

Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

Write when the problem started and how it changed.
Bring old prescriptions, investigation reports, and current medicines.
Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

What is the most likely cause of my symptoms?
Which danger signs mean I should go to hospital quickly?
Which tests are necessary now, and which can wait?
How should I take medicines safely and what side effects should I watch for?
When should I come for follow-up?

Tests to discuss

Vital signs: temperature, pulse, blood pressure, oxygen saturation
Basic physical examination by a clinician
CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

Avoid heavy lifting, sudden bending, and prolonged bed rest.
Use comfortable posture and gentle movement as tolerated.
Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

Do not start antibiotics without a proper medical decision.
Do not use steroid tablets or injections casually for quick relief.
Do not delay emergency care because of home remedies.

Get urgent help if

Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.

Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Medicine doctor / pediatrician for children / qualified clinician

Tests to discuss with doctor

Temperature chart and hydration assessment
CBC with platelet count if fever persists or dengue/other infection is possible
Urine test, malaria/dengue tests, chest evaluation, or blood culture only when clinically indicated

Questions to ask

What is the most likely cause of my symptoms?
Which warning signs mean I should go to emergency care?
Which tests are really needed now?
Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?
Do I need antibiotics, or is this more likely viral?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Go to emergency care if you notice:

Severe or rapidly worsening symptoms
Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration

Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.

Step 1
Check danger signs first

If danger signs are present, seek emergency care and do not wait for online information.
Step 2
Record the symptom story

Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.
Step 3
Visit a qualified clinician

A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.
Step 4
Do only useful tests

Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.
Step 5
Follow up and return early if worse

If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips

Take a written symptom diary and all previous prescriptions/test reports.
Do not hide medicines already taken, even herbal or over-the-counter medicines.
Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

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