Plant Comparison

Bistort vs Oregon Grape

A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.

First plant
Second plant
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Plant ABistortBistorta officinalisPolygonaceaeFull monograph →
Plant BOregon GrapeMahonia aquifoliumBerberidaceaeFull monograph →

At a glance

Bistort and Oregon Grape: they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), infection (general), …); 3 pharmacological actions in common.

BistortOregon Grape
Constituents31
Pharmacological actions73
Indicated uses108
Safety notes32
Cited sources1413
Indicated uses
Only Bistort
BruisingDiarrhoeaHeavy menstrual bleedingSore throat
Shared (6)
Arthritis / joint painCancer (anticancer research)Infection (general)Inflammation (general)Skin irritationWounds
Only Oregon Grape
EczemaPsoriasis
Pharmacological actions
Only Bistort
AntidiarrhoealAstringentStyptic / haemostaticVulnerary (wound healing)
Shared (3)
Anti-inflammatoryAnticancer (preclinical)Antimicrobial
Only Oregon Grape
none

Evidence face-off — shared uses

ConditionBistortOregon GrapeVerdict
Arthritis / joint pain1/107/10Stronger for Oregon Grape
Cancer (anticancer research)2/102/10Comparable evidence
Infection (general)1/102/10Comparable evidence
Inflammation (general)1/107/10Stronger for Oregon Grape
Skin irritation1/108/10Stronger for Oregon Grape
Wounds1/101/10Comparable evidence

Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.

Key Constituents

Tannins (15-36% of the rhizome: oligomeric proanthocyanidins, gallotannins, catechins)[13, 14]

Very high tannin content is the basis of the strong astringency.

ProanthocyanidinsTanninsCatechins
Phenolic acids and flavonoids[14]

Contribute to antioxidant and antibacterial activity.

Phenolic acidsFlavonoids
Starch and oxalic acid[13]

Other rhizome constituents.

Starch
Isoquinoline alkaloids (berberine, berbamine, palmatine, jatrorrhizine, magnoflorine)[2, 11, 12]

Berberine is the main anti-psoriatic and antimicrobial constituent.

AlkaloidsBerberine

Pharmacological Actions

Anti-inflammatory[4, 13, 14]

Anti-inflammatory gargle / mouthwash for inflammation of the mouth and throat (sore throat)

Anticancer (preclinical)[10, 11]

Bistorta officinalis (Polygonum bistorta) rhizome extract, rich in gallotannins and phenolic acids, shows cytotoxic and pro-apoptotic activity against hepatocellular and other cancer cells (preclinical).

Antidiarrhoeal[4, 13, 14]

Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)

Antimicrobial[2, 12, 14]

Antibacterial (topical) - GC-MS-characterised extracts showed antibacterial activity

Astringent[7, 13, 14]

Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)

Styptic / haemostatic[13, 14]

Vulnerary and styptic for minor wounds (topical)

Vulnerary (wound healing)[13, 14]

Vulnerary and styptic for minor wounds (topical)

Anti-inflammatory[7, 10, 11]

Anti-inflammatory and antiproliferative (slows the skin-cell overgrowth of psoriasis)

Anticancer (preclinical)[3, 4, 6, 11]

Anti-inflammatory and antiproliferative (slows the skin-cell overgrowth of psoriasis)

Antimicrobial[2, 5, 8, 9, 12]

Antimicrobial (berberine) - supports skin and mucosal infection

Traditional & Indicated Uses

Arthritis / joint pain[13, 14]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Arthritis / joint pain
Bruising[13, 14]Traditional · 1/10

inferred from vulnerary action

Evidence: 1
Label: Bruising
Cancer (anticancer research)[10, 11]Traditional · 2/10

Polygonum bistorta (Bistorta officinalis) methanol-water and aqueous extracts inhibit hepatocellular carcinoma cells via ROS-induced ER stress and apoptosis (delaying xenograft tumour growth), with phenolic constituents driving the cytotoxicity (preclinical).

Evidence: 2
Label: Cancer (anticancer research)
Diarrhoea[13, 14]Traditional · 1/10

Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)

Evidence: 1
Label: Diarrhoea
Heavy menstrual bleeding[13, 14]Traditional · 1/10

inferred from styptic action

Evidence: 1
Label: Heavy menstrual bleeding
Infection (general)[12, 14]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Infection (general)
Inflammation (general)[13, 14]Traditional · 1/10

Anti-inflammatory gargle / mouthwash for inflammation of the mouth and throat (sore throat)

Evidence: 1
Label: Inflammation (general)
Skin irritation[13, 14]Traditional · 1/10

inferred from astringent action

Evidence: 1
Label: Skin irritation
Sore throat[13, 14]Traditional · 1/10

Anti-inflammatory gargle / mouthwash for inflammation of the mouth and throat (sore throat)

Evidence: 1
Label: Sore throat
Wounds[13, 14]Traditional · 1/10

Vulnerary and styptic for minor wounds (topical)

Evidence: 1
Label: Wounds
Arthritis / joint pain[11]Good · 7/10

inferred from anti-inflammatory action

Evidence: 7
Label: Arthritis / joint pain
Cancer (anticancer research)[3]Traditional · 2/10

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Eczema[11]Good · 7/10

Topical for atopic dermatitis (eczema) and skin irritation

Evidence: 7
Label: Eczema
Infection (general)[5, 12]Traditional · 2/10

Antimicrobial (berberine) - supports skin and mucosal infection

Evidence: 2
Label: Infection (general)
Inflammation (general)[10, 11]Good · 7/10

inferred from anti-inflammatory action

Evidence: 7
Label: Inflammation (general)
Psoriasis[1, 7, 11, 13]Strong · 9/10

Anti-inflammatory and antiproliferative (slows the skin-cell overgrowth of psoriasis); Topical treatment of mild-to-moderate psoriasis (reduces plaque severity) - a double-blind, placebo-controlled RCT showed significant improvement in PASI and quality-of-life scores

Evidence: 9
Label: Psoriasis
Skin irritation[1, 11]Good · 8/10

Topical for atopic dermatitis (eczema) and skin irritation

Evidence: 8
Label: Skin irritation
Wounds[12]Traditional · 1/10

inferred from antimicrobial action

Evidence: 1
Label: Wounds

Safety, Cautions & Contraindications

Safety note[13]Info

Very tannin-rich: high or prolonged intake may cause stomach upset or constipation and can reduce the absorption of iron and some medicines taken at the same time.

Safety note[13]Info

Traditional use only; diarrhoea persisting beyond a few days, or mouth/throat inflammation that does not settle, needs medical assessment.

Safety note[13]Caution

Safety in pregnancy and breastfeeding is not established; avoid medicinal doses.

Safety note[12]Caution

Avoid internal use in pregnancy and breastfeeding: like goldenseal, the berberine it contains can cross the placenta and into milk and worsen newborn jaundice (kernicterus risk).

Safety note[11, 12]Caution

Berberine impairs the metabolism of some medicines - for example it raises blood levels of cyclosporine, risking toxicity - so use caution with prescription drugs. It is used mainly topically for skin conditions.

External Ids

Gbif: 7925535
Wikidata: Q112917
Gbif: 3033865
Wikidata: Q158303

Botanical Description

Perennial herb rising from a thick, twisted, S- or snake-shaped rhizome (giving the names 'bistort' and 'snakeroot'), blackish outside and pink inside. The basal leaves are broadly oval to lance-shaped on long stalks; stem leaves are smaller and stalkless. A single dense, cylindrical spike of small, pale pink flowers is borne atop each unbranched flowering stem.[14]

Height: 30-80 cm
Habit: Erect perennial herb from a twisted rhizome
Leaves: Basal leaves broadly oval to lance-shaped, long-stalked; stem leaves smaller, stalkless
Flowers: Dense, cylindrical spike of small pale pink flowers atop an unbranched stem
Stem: Erect, unbranched, one flower spike per stem
Root: Thick, twisted, S-shaped (snake-like) rhizome, blackish outside, pink inside
Fruit: Small, glossy, three-angled achene
Flowering Period: May-August

Evergreen shrub, 0.5-2 m tall, spreading by underground rhizomes to form thickets. The pinnate leaves resemble holly, with 5-9 glossy, dark green, spiny-toothed leaflets that often turn bronze-red in winter. Small, bright yellow, six-petalled flowers are borne in dense, upright terminal racemes in early spring, followed by clusters of blue-black, grape-like berries with a waxy bloom. The wood and inner bark of the stem and root are bright yellow when cut, owing to their high content of berberine-type alkaloids.

Height: 0.5-2 m
Habit: Evergreen, rhizomatous, colony-forming shrub
Leaves: Pinnate, holly-like, 5-9 glossy dark green spiny-toothed leaflets
Flowers: Small, bright yellow, six-petalled, in dense upright terminal racemes
Stem: Woody; wood and inner bark bright yellow when cut
Root: Woody, rhizomatous, bright yellow within (berberine-type alkaloids)
Fruit: Clusters of blue-black, grape-like berries with a waxy bloom
Flowering Period: Early spring (March-April)

Habitat

Grows in damp meadows, pastures, streamsides and mountain grassland on moist, often calcareous soils; native to Europe and temperate Asia, favouring cooler upland regions.[14]

Native to the Pacific Northwest of North America, growing in coniferous woodland understorey, forest margins and rocky slopes; widely introduced and naturalised as an ornamental and hedging shrub in temperate regions elsewhere.

Harvesting

The rhizome is dug in autumn or early spring, when tannin content is highest, cleaned and dried; aerial parts are gathered in summer while flowering.[14]

Parts: Rhizome (root) and aerial parts
Season: Rhizome in autumn or early spring; aerial parts in summer flowering

The root and root bark, the medicinal parts, are dug from established plants - traditionally in autumn - and dried. Because wild populations are slow-growing, cultivated or nursery-sourced material is preferred over wild-harvesting.

Parts: Root, Bark
Season: Autumn

Traditional Uses

Bistort rhizome, one of the most tannin-rich temperate herbs, has a long European folk history as a powerful astringent for mild diarrhoea, as a gargle for sore throat and mouth inflammation, and topically as a vulnerary and styptic for minor wounds and bleeding; young leaves have also traditionally been eaten as a spring pot-herb ('Easter-ledge pudding').[13, 14]

Oregon grape root has a traditional Native American and Eclectic-medicine history as a bitter tonic and alterative (blood-purifying) remedy and for skin conditions. Its main modern use, supported by clinical trials, is topical application of a standardised bark extract for mild-to-moderate psoriasis and atopic dermatitis (eczema), where its berberine-type alkaloids give anti-inflammatory and antiproliferative effects on skin cells.[1, 11, 12]

Preparations

Decoction (rhizome)[14]

Dried rhizome simmered in water as a strongly astringent traditional remedy for diarrhoea, or used as a gargle/mouthwash for sore throat.

Poultice/wash[13]

Crushed rhizome or aerial parts applied externally, or used as a wash, for minor wounds and bleeding.

Topical cream/ointment[1, 11, 13]

A standardised 10% Mahonia aquifolium bark extract cream, the best-studied form, applied to affected skin up to three times daily for psoriasis or eczema.

References

REF-0746, REF-0747, REF-0748, REF-2116, REF-2117, REF-2118, REF-2119, REF-2120, REF-2121, REF-2122, REF-2123, REF-0627
REF-1173, REF-1174, REF-1175, REF-1176, REF-1177, REF-1178, REF-1179, REF-1180, REF-1181, REF-1182

Lookalikes Review

Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07
Outcome: none-known
Reviewed By: Omnia Sana (owner-authorized)
Reviewed Date: 2026-07-07

Dosage

Not documented

Topical 10% extract cream[11, 13]

Clinical trials in psoriasis and eczema have used a 10% Mahonia aquifolium bark extract cream applied to affected areas up to three times daily. Educational reference only, not a prescription; internal use is not well studied and should be supervised.

References & Sources

  1. Pawłowska, K.A., Hałasa, R., Dudek, M.K., Majdan, M. et al (2020) 'Antibacterial and anti-inflammatory activity of bistort (Bistorta officinalis) aqueous extract and its major components: justification of the usage of the medicinal plant material as a traditional topical agent', Journal of Ethnopharmacology, 260, pp. 113077. doi:10.1016/j.jep.2020.113077 Preclinical
    https://doi.org/10.1016/j.jep.2020.113077
  2. Jovanović, M., Morić, I., Nikolić, B., Pavić, A. et al (2020) 'Anti-Virulence Potential and In Vivo Toxicity of Persicaria maculosa and Bistorta officinalis Extracts', Molecules, 25(8), pp. 1811. doi:10.3390/molecules25081811 Preclinical
    https://doi.org/10.3390/molecules25081811
  3. Duwiejua, M., Zeitlin, I.J., Waterman, P.G. and Gray, A.I (1994) 'Anti-inflammatory activity of Polygonum bistorta, Guaiacum officinale and Hamamelis virginiana in rats', Journal of Pharmacy and Pharmacology, 46(4), pp. 286-290. doi:10.1111/j.2042-7158.1994.tb03795.x Preclinical
    https://doi.org/10.1111/j.2042-7158.1994.tb03795.x
  4. Esmaealzadeh, N., Abdolghaffari, A., Baeeri, M., Hasanpour, M., Iranshahi, M., Santarcangelo, C., Gholami, M. and Bahramsoltani, R (2024) 'Protective effect of freeze-dried extract of Persicaria bistorta Samp. on acetic acid-induced colitis model in rats: involvement of nitric oxide and opioid system', Inflammopharmacology, 32(6), pp. 3845-3861. doi:10.1007/s10787-024-01518-8 Preclinical
    https://doi.org/10.1007/s10787-024-01518-8
  5. Klimczak, U., Wozniak, M., Tomczyk, M. and Granica, S (2017) 'Chemical composition of edible aerial parts of meadow bistort (Persicaria bistorta (L.) Samp.)', Food Chemistry, 230, pp. 281-290. doi:10.1016/j.foodchem.2017.02.128 Preclinical
    https://doi.org/10.1016/j.foodchem.2017.02.128
  6. Manoharan, K.P., Benny, T.K.H. and Yang, D (2005) 'Cycloartane type triterpenoids from the rhizomes of Polygonum bistorta', Phytochemistry, 66(19), pp. 2304-2308. doi:10.1016/j.phytochem.2005.07.008 Preclinical
    https://doi.org/10.1016/j.phytochem.2005.07.008
  7. Liu, X., Hua, H., Liu, J., Chen, F. and Wu, L (2006) 'A new tannin-related compound from the rhizome of Polygonum bistorta L', Journal of Asian Natural Products Research, 8(4), pp. 299-302. doi:10.1080/10286020500034956 Preclinical
    https://doi.org/10.1080/10286020500034956
  8. Yang, W., Qian, Z., Wu, M., Gao, J., Huang, Q., Zou, Y. and Tang, D (2023) 'Online microextraction coupled with HPLC-ABTS for rapid analysis of antioxidants from the root of Polygonum bistorta', Evidence-Based Complementary and Alternative Medicine, 2023, pp. 7496848. doi:10.1155/2023/7496848 Preclinical
    https://doi.org/10.1155/2023/7496848
  9. Bauer, I., Rimbach, G., Nevermann, S., Neuhauser, C., Schwarzinger, B., Schwarzinger, C., Weghuber, J. and Luersen, K (2023) 'In-vitro antidiabetic activity of a Bistorta officinalis Delarbre root extract can not be confirmed in the in-vivo models hen's egg test and Drosophila melanogaster', Journal of Physiology and Pharmacology, 74(1). doi:10.26402/jpp.2023.1.04 Preclinical
    https://doi.org/10.26402/jpp.2023.1.04
  10. Intisar, A., Zhang, L., Luo, H., Kiazolu, J.B., Zhang, R. and Zhang, W (2012) 'Anticancer constituents and cytotoxic activity of methanol-water extract of Polygonum bistorta L', African Journal of Traditional, Complementary and Alternative Medicines, 10(1), pp. 53-59. doi:10.4314/ajtcam.v10i1.9 Preclinical
    https://doi.org/10.4314/ajtcam.v10i1.9
  11. Liu, Y., Weng, Y., Lin, H., Tang, S., Chen, C., Liang, C., Ku, C. and Lin, J (2017) 'Aqueous extract of Polygonum bistorta modulates proteostasis by ROS-induced ER stress in human hepatoma cells', Scientific Reports, 7, pp. 41437. doi:10.1038/srep41437 Preclinical
    https://doi.org/10.1038/srep41437
  12. Khan, S., Arshad, S., Masood, I., Arif, A., Abbas, S., Qureshi, A.W., Parveen, A. and Seemab Ameen, Z (2023) 'GC-MS Analysis of Persicaria bistorta: Uncovering the Molecular Basis of Its Traditional Medicinal Use', Applied Biochemistry and Biotechnology, 196(4), pp. 2270--2288. doi:10.1007/s12010-023-04580-0 Traditional / reference
    https://doi.org/10.1007/s12010-023-04580-0
  13. WebMD (n.d.) 'Bistort: Overview, Uses, Side Effects, Precautions, Interactions, Dosing and Reviews'. Available at: https://www.webmd.com/vitamins/ai/ingredientmono-75/bistort Traditional / reference
    https://www.webmd.com/vitamins/ai/ingredientmono-75/bistort
  14. (2020) 'Antibacterial and anti-inflammatory activity of bistort (Bistorta officinalis) aqueous extract and its major components - justification of the usage of the medicinal plant material as a traditional topical agent', Journal of Ethnopharmacology. doi:10.1016/j.jep.2020.113077 Traditional / reference
    https://doi.org/10.1016/j.jep.2020.113077
  1. Gulliver, W.P. and Donsky, H.J (2005) 'A report on three recent clinical trials using Mahonia aquifolium 10% topical cream and a review of the worldwide clinical experience with Mahonia aquifolium for the treatment of plaque psoriasis', American Journal of Therapeutics, 12(5), pp. 398-406. doi:10.1097/01.mjt.0000174350.82270.da Clinical study
    https://doi.org/10.1097/01.mjt.0000174350.82270.da
  2. Cernakova, M. and Kostalova, D (2002) 'Antimicrobial activity of berberine--a constituent of Mahonia aquifolium', Folia Microbiologica, 47(4), pp. 375-378. doi:10.1007/BF02818693 Preclinical
    https://doi.org/10.1007/BF02818693
  3. Damjanovic, A., Kolundzija, B., Matic, I.Z., Krivokuca, A. and others (2020) 'Mahonia aquifolium Extracts Promote Doxorubicin Effects against Lung Adenocarcinoma Cells In Vitro', Molecules, 25(22), pp. 5233. doi:10.3390/molecules25225233 Preclinical
    https://doi.org/10.3390/molecules25225233
  4. Cernakova, M., Kostalova, D., Kettmann, V., Plodova, M. and others (2002) 'Potential antimutagenic activity of berberine, a constituent of Mahonia aquifolium', BMC Complementary and Alternative Medicine, 2, pp. 2. doi:10.1186/1472-6882-2-2 Preclinical
    https://doi.org/10.1186/1472-6882-2-2
  5. Slobodnikova, L., Kostalova, D., Labudova, D., Kotulova, D. and Kettmann, V (2004) 'Antimicrobial activity of Mahonia aquifolium crude extract and its major isolated alkaloids', Phytotherapy Research, 18(8), pp. 674-676. doi:10.1002/ptr.1517 Preclinical
    https://doi.org/10.1002/ptr.1517
  6. Godjevac, D., Damjanovic, A., Stanojkovic, T.P., Andjelkovic, B. and Zdunic, G (2018) 'Identification of cytotoxic metabolites from Mahonia aquifolium using 1H NMR-based metabolomics approach', Journal of Pharmaceutical and Biomedical Analysis, 150, pp. 9-14. doi:10.1016/j.jpba.2017.11.075 Preclinical
    https://doi.org/10.1016/j.jpba.2017.11.075
  7. Muller, K. and Ziereis, K (1994) 'The antipsoriatic Mahonia aquifolium and its active constituents; I. Pro- and antioxidant properties and inhibition of 5-lipoxygenase', Planta Medica, 60(5), pp. 421-424. doi:10.1055/s-2006-959523 Preclinical
    https://doi.org/10.1055/s-2006-959523
  8. Rohrer, U., Kunz, E.M.K., Lenkeit, K., Schaffner, W. and Meyer, J (2007) 'Antimicrobial activity of Mahonia aquifolium and two of its alkaloids against oral bacteria', Schweizer Monatsschrift fur Zahnmedizin, 117(11), pp. 1126-1131. Preclinical
    https://scholar.google.com/scholar?q=Antimicrobial%20activity%20of%20Mahonia%20aquifolium%20and%20two%20of%20its%20alkaloids%20against%20oral%20bacteria
  9. Vollekova, A., Kostalova, D., Kettmann, V. and Toth, J (2003) 'Antifungal activity of Mahonia aquifolium extract and its major protoberberine alkaloids', Phytotherapy Research, 17(7), pp. 834-837. doi:10.1002/ptr.1256 Preclinical
    https://doi.org/10.1002/ptr.1256
  10. Hajnicka, V., Kostalova, D., Svecova, D., Sochorova, R. and others (2002) 'Effect of Mahonia aquifolium active compounds on interleukin-8 production in the human monocytic cell line THP-1', Planta Medica, 68(3), pp. 266-268. doi:10.1055/s-2002-23126 Preclinical
    https://doi.org/10.1055/s-2002-23126
  11. Gulliver, W.P. and colleagues (2018) 'Review of the Efficacy and Safety of Topical Mahonia aquifolium for the Treatment of Psoriasis and Atopic Dermatitis', Journal of Clinical and Aesthetic Dermatology. Available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334833/ Meta-analysis / review
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6334833/
  12. Herbal Reality (n.d.) 'Oregon Grape Root (Berberis aquifolium): Benefits, Uses, Safety'. Available at: https://www.herbalreality.com/herb/oregon-grape/ Traditional / reference
    https://www.herbalreality.com/herb/oregon-grape/
  13. Bernstein, S., Donsky, H., Gulliver, W., Hamilton, D., Nobel, S. and Norman, R (2006) 'Treatment of mild to moderate psoriasis with Relieva, a Mahonia aquifolium extract - a double-blind, placebo-controlled study', American Journal of Therapeutics, 13(2), pp. 121--126. doi:10.1097/00045391-200603000-00007 Randomized trial
    https://doi.org/10.1097/00045391-200603000-00007

Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.