Bistort
(Polygonum bistorta)
Also know as Snakeweed
Botanical Information
A short, compact perennial plant of wet meadows in the buckwheat family. The flowers are in short pink or white spikes.
Working with Bistort
Part(s) Used
Root, Rhizome
Herb Forms
Bulk herb, powder
Christopher Hobbs:
“Bistort root is highly astringent and is used for diarrhea and hemorrhaging. The decoction is used as a mouthwash for gum problems, and the powder is sprinkled on wounds externally to stop bleeding. P. bistortoides is a common native U.S. species that can be used similarly.
Other dose forms: use as a wash for mouth problems or sore throat; 1 tsp/cup of water.
Bistort has a taste of ASTRINGENT and a temperature of COOL.”
Traditionally, bistort root has been used as a remedy for a range of digestive issues, such as diarrhea and dysentery, due to its strong astringent effects. It was also used for wound healing, sore throats, and as a poultice for ulcers and skin sores. In European folk medicine, bistort was often included in spring tonics.
Modern Clinical Uses by Herbalists and Naturopaths
In modern herbalism, bistort is still used for gastrointestinal complaints like diarrhea and mild inflammation of the mucous membranes. Naturopaths may also recommend it for wound care, skin conditions, and to reduce symptoms in upper respiratory infections. Its astringency makes it helpful for slowing blood flow in mild cases, and it’s occasionally used in mouth rinses or gargles for oral and throat infections. As a gargle, a 1:10 tincture diluted with water is commonly used.
Chemistry
The main active constituents in bistort are tannins (up to 20-30% in the root), flavonoids, and phenolic acids, which contribute to its astringent and antioxidant effects. The tannins bind to proteins and mucous membranes, which helps reduce inflammation and irritation.
Pharmacology
The tannins in bistort contribute to its astringent effects, which help reduce swelling, slow bleeding, and soothe irritation. The phenolic compounds have mild antimicrobial and antioxidant properties, which can further support wound healing and infection resistance.
Clinical Trials
There is limited clinical research on bistort, though some studies have noted its astringent and anti-inflammatory properties in vitro. Its antimicrobial effects are under preliminary investigation, particularly against certain strains of bacteria and fungi. More clinical trials are needed to substantiate its traditional uses and determine standardized dosages.
Summary
Bistort remains a popular astringent in herbal medicine, with historical use validated by some scientific studies, though limited clinical trials exist. While generally safe in moderation, caution is advised for extended use due to its high tannin content.
Created by ChatGPT: edited by Christopher Hobbs.
Cautions
Bistort is generally safe when used in recommended dosages. However, due to its high tannin content, it should be avoided in large amounts or for prolonged periods, as it can irritate the stomach lining and potentially affect iron absorption. Pregnant and breastfeeding women should avoid bistort, and individuals with kidney or liver issues should consult a healthcare professional before use.
Conditions treated with Bistort
Condition
Treatment Support
Application
Condition
Treatment Support
astringent
Application
tea, tincture
Condition
Treatment Support
astringent
Application
tea, tincture
The information given here is designed to help you make informed choices about your health. The information is drawn from numerous sources—both traditional medicine practice, from the clinical experience of many herbalists currently practicing, and supported by decades of scientific research from the author. The research most consulted includes human clinical trials that help to determine the most effective and safe herbs for various needs, the best doses, and types of preparations.
The information offered in this database is not intended as a substitute for any that may have been prescribed by your health practitioner or physician.
