Plant Comparison

Bistort vs Clove

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 BCloveSyzygium aromaticumMyrtaceaeFull monograph →

At a glance

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

BistortClove
Constituents33
Pharmacological actions76
Indicated uses1012
Safety notes32
Cited sources1414
Indicated uses
Only Bistort
BruisingDiarrhoeaHeavy menstrual bleedingSore throat
Shared (6)
Arthritis / joint painCancer (anticancer research)Infection (general)Inflammation (general)Skin irritationWounds
Only Clove
Back painBloatingHeadacheIndigestionOral & throat healthPain (general)
Pharmacological actions
Only Bistort
AntidiarrhoealAstringentStyptic / haemostaticVulnerary (wound healing)
Shared (3)
Anti-inflammatoryAnticancer (preclinical)Antimicrobial
Only Clove
Analgesic (pain relief)AntioxidantDigestive aid

Evidence face-off — shared uses

ConditionBistortCloveVerdict
Arthritis / joint pain1/102/10Comparable evidence
Cancer (anticancer research)2/102/10Comparable evidence
Infection (general)1/102/10Comparable evidence
Inflammation (general)1/101/10Comparable evidence
Skin irritation1/101/10Comparable evidence
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
Essential oil (eugenol)[1, 2]

Eugenol typically makes up the great majority of clove oil and is responsible for most of its analgesic, antimicrobial and anti-inflammatory activity.

Essential (volatile) oilEugenol
Flavonoids and phenolic acids[3]

Contribute additional antioxidant activity.

FlavonoidsPhenolic acids
Tannins[2]

Contribute mild astringency.

Tannins

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)

Analgesic (pain relief)[2, 11, 12, 13]
Anti-inflammatory[2, 3, 8, 11, 12, 13]
Anticancer (preclinical)[10]
Antimicrobial[1, 2, 3, 5, 7, 11, 12, 13]
Antioxidant[1, 2, 4, 6, 7, 11, 12, 13]
Digestive aid[9, 11, 12, 13]

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[8, 11, 12, 13]Traditional · 2/10

inferred from anti-inflammatory action

Evidence: 2
Label: Arthritis / joint pain
Back pain[11, 12, 13]Traditional · 1/10

inferred from analgesic action

Evidence: 1
Label: Back pain
Bloating[11, 12, 13]Traditional · 1/10

inferred from digestive action

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

inferred from anticancer action

Evidence: 2
Label: Cancer (anticancer research)
Headache[11, 12, 13]Traditional · 1/10

inferred from analgesic action

Evidence: 1
Label: Headache
Indigestion[11, 12, 13]Traditional · 1/10

inferred from digestive action

Evidence: 1
Label: Indigestion
Infection (general)[5, 11, 12, 13]Traditional · 2/10

inferred from antimicrobial action

Evidence: 2
Label: Infection (general)
Inflammation (general)[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Inflammation (general)
Oral & throat health[11, 12, 13]Traditional · 1/10
Evidence: 1
Label: Oral & throat health
Pain (general)[11, 12, 13]Traditional · 1/10
Evidence: 1
Label: Pain (general)
Skin irritation[11, 12, 13]Traditional · 1/10

inferred from anti-inflammatory action

Evidence: 1
Label: Skin irritation
Wounds[11, 12, 13]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[11, 12, 13]Caution

Strong and concentrated: Clove oil is very potent and should always be diluted before skin or mouth use.Dental use: Undiluted clove oil can burn gums or skin.Blood thinning: Clove may increase bleeding risk in large amounts or with anticoagulants.Pregnancy: Culinary amounts are fine; medicinal doses should be used cautiously.Children: Essential oil should be used with extra caution and diluted well.

Safety note[11, 12, 13, 14]Caution

Duke (2002) rates cloves as +++ with clinical evidence (score 2) for analgesic activity — specifically, topical application of clove oil (eugenol) for dental pain is clinically validated. The plant also shows strong antimicrobial, antifungal (anti-Candida), antispasmodic, and antiviral activities at the experimental level. Commission E approves topical clove preparations for dental pain. Recommended dose: 1–5% clove oil preparation (topical) or 150 mg clove powder internally. The essential oil is irritating to mucous membranes and should not be applied undiluted to skin or mucous membranes (Duke, 2002).

External Ids

Gbif: 7925535
Wikidata: Q112917
Gbif: 3183002
Wikidata: Q26736

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 tree (Myrtaceae), 8-12 m tall (occasionally to 20 m), with a pyramidal crown. Leaves are glossy, elliptical and aromatic. Small crimson flowers are borne in terminal clusters; the unopened flower buds, picked before they open and dried, are the 'cloves' of commerce and the medicinal/culinary part used.[2]

Height: 8-12 m (occasionally to 20 m)
Habit: Evergreen tree with a pyramidal crown
Leaves: Glossy, elliptical, aromatic
Flowers: Small, crimson, in terminal clusters; unopened buds are the harvested cloves
Stem: Woody, branching
Root: Deep woody root system
Fruit: Small drupe ("mother clove"), less commonly harvested than the flower bud
Flowering Period: Variable, often twice a year in tropical climates

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 Maluku Islands (Moluccas, the historic 'Spice Islands') of Indonesia, now cultivated throughout the tropics, notably Zanzibar, Madagascar, Sri Lanka and Indonesia, in warm, humid, well-drained tropical conditions.[2]

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

Unopened flower buds are hand-picked while still green-pink, just before they would open, then sun-dried until they turn dark reddish-brown - the familiar clove spice.[2]

Parts: Flower
Season: Before the flower buds open

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]

Clove has an ancient trade history and a long traditional use across Asian, African and European medicine as a dental analgesic (chewed or applied as oil for toothache), a digestive carminative, and an antiseptic. Modern research on its principal constituent eugenol supports strong analgesic, antimicrobial, antioxidant and anti-inflammatory activity, with clove oil remaining a recognised topical dental-pain remedy.[2]

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.

Whole clove (culinary/chewed)[2]

Whole dried flower buds chewed or infused for digestive and dental use.

Clove oil (topical, diluted)[11, 12, 13]

The classic dental-pain remedy, applied to the affected tooth/gum, always diluted.

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-1074, REF-1075, REF-1076, REF-1077, REF-1078, REF-1079, REF-1080, REF-1081, REF-1082, REF-1083

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

Clove oil / powder[11, 12, 13]

Duke (2002): a 1-5% clove oil preparation topically, or about 150 mg clove powder internally. Educational reference only, not a prescription; never apply undiluted oil to skin or mucous membranes.

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. Haro-Gonzalez, J.N., Castillo-Herrera, G.A., Martinez-Velazquez, M. and Espinosa-Andrews, H (2021) 'Clove Essential Oil (Syzygium aromaticum L. Myrtaceae): Extraction, Chemical Composition, Food Applications, and Essential Bioactivity for Human Health', Molecules, 26(21), pp. 6387. doi:10.3390/molecules26216387 Meta-analysis / review
    https://doi.org/10.3390/molecules26216387
  2. Batiha, G.E., Alkazmi, L.M., Wasef, L.G., Beshbishy, A.M. and others (2020) 'Syzygium aromaticum L. (Myrtaceae): Traditional Uses, Bioactive Chemical Constituents, Pharmacological and Toxicological Activities', Biomolecules, 10(2), pp. 202. doi:10.3390/biom10020202 Meta-analysis / review
    https://doi.org/10.3390/biom10020202
  3. Vicidomini, C., Roviello, V. and Roviello, G.N (2021) 'Molecular Basis of the Therapeutical Potential of Clove (Syzygium aromaticum L.) and Clues to Its Anti-COVID-19 Utility', Molecules, 26(7), pp. 1880. doi:10.3390/molecules26071880 Meta-analysis / review
    https://doi.org/10.3390/molecules26071880
  4. Irahal, I.N., Guenaou, I., Lahlou, F.A., Hmimid, F. and others (2022) 'Syzygium aromaticum bud (clove) essential oil is a novel and safe aldose reductase inhibitor: in silico, in vitro, and in vivo evidence', Hormones (Athens), 21(2), pp. 229-240. doi:10.1007/s42000-021-00347-6 Preclinical
    https://doi.org/10.1007/s42000-021-00347-6
  5. Yassin, M.T., Mostafa, A.A. and Al-Askar, A.A (2020) 'In vitro anticandidal potency of Syzygium aromaticum (clove) extracts against vaginal candidiasis', BMC Complementary Medicine and Therapies, 20(1), pp. 25. doi:10.1186/s12906-020-2818-8 Preclinical
    https://doi.org/10.1186/s12906-020-2818-8
  6. Kiki, M.J (2023) 'In Vitro Antiviral Potential, Antioxidant, and Chemical Composition of Clove (Syzygium aromaticum) Essential Oil', Molecules, 28(6), pp. 2421. doi:10.3390/molecules28062421 Preclinical
    https://doi.org/10.3390/molecules28062421
  7. Radunz, M., da Trindade, M.L.M., Camargo, T.M., Radunz, A.L. and others (2019) 'Antimicrobial and antioxidant activity of unencapsulated and encapsulated clove (Syzygium aromaticum, L.) essential oil', Food Chemistry, 276, pp. 180-186. doi:10.1016/j.foodchem.2018.09.173 Preclinical
    https://doi.org/10.1016/j.foodchem.2018.09.173
  8. Shakeel, F., Alam, P., Ali, A., Alqarni, M.H. and others (2021) 'Investigating Antiarthritic Potential of Nanostructured Clove Oil (Syzygium aromaticum) in FCA-Induced Arthritic Rats: Pharmaceutical Action and Delivery Strategies', Molecules, 26(23), pp. 7327. doi:10.3390/molecules26237327 Preclinical
    https://doi.org/10.3390/molecules26237327
  9. Tu, Z., Moss-Pierce, T., Ford, P. and Jiang, T.A (2014) 'Syzygium aromaticum L. (Clove) extract regulates energy metabolism in myocytes', Journal of Medicinal Food, 17(9), pp. 1003-1010. doi:10.1089/jmf.2013.0175 Preclinical
    https://doi.org/10.1089/jmf.2013.0175
  10. Banerjee, S., Panda, C.K. and Das, S (2006) 'Clove (Syzygium aromaticum L.), a potential chemopreventive agent for lung cancer', Carcinogenesis, 27(8), pp. 1645-1654. doi:10.1093/carcin/bgi372 Preclinical
    https://doi.org/10.1093/carcin/bgi372
  11. Bhowmik, D., Kumar, K.P.S., Yadav, A., Srivastava, S., Paswan, S. and Dutta, A.S (2012) 'Recent trends in Indian traditional herbs Syzygium aromaticum and its health benefits', 1(1), pp. 13--23. Traditional / reference
    https://scholar.google.com/scholar?q=Recent%20trends%20in%20Indian%20traditional%20herbs%20Syzygium%20aromaticum%20and%20its%20health%20benefits
  12. Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
    https://powo.science.kew.org
  13. World Health Organization (2002) 'WHO Monographs on Selected Medicinal Plants'. Traditional / reference
    https://scholar.google.com/scholar?q=WHO%20Monographs%20on%20Selected%20Medicinal%20Plants
  14. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition

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.