Plant Comparison
Field Horsetail vs Turkey tail
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.
At a glance
Field Horsetail and Turkey tail: they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), infection (general), …); 3 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Field Horsetail | Turkey tail | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 5/10 | 5/10 | Comparable evidence |
| Cancer (anticancer research) | 2/10 | 9/10 | Stronger for Turkey tail |
| Infection (general) | 5/10 | 5/10 | Comparable evidence |
| Inflammation (general) | 5/10 | 5/10 | Comparable evidence |
| Skin irritation | 5/10 | 5/10 | Comparable evidence |
| Wounds | 5/10 | 5/10 | Comparable 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
Field horsetail is exceptionally rich in silica, concentrated in the stem, and is a signature source of this mineral in Western herbal medicine.
Antioxidant flavonoids contributing to the plant's anti-inflammatory activity.
An enzyme that degrades vitamin B1 (thiamine); the basis of the caution against prolonged or excessive use.
The principal immunomodulating constituents, forming the basis of PSK/PSP extracts.
Protein-bound polysaccharide complex studied extensively as an adjunct immunotherapy.
Minor antioxidant constituents.
Pharmacological Actions
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from anti-rheumatic action
inferred from anticancer action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from diuretic action
inferred from diuretic action
inferred from diuretic action
inferred from anti-inflammatory action
inferred from anticancer action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
Field horsetail contains thiaminase, an enzyme that degrades thiamine (vitamin B1); prolonged or excessive use can cause thiamine deficiency — symptoms include neurological problems and weight loss. This risk is greatest with repeated large doses or prolonged use. The plant also contains nicotine at low levels and silica compounds. Not recommended for children or during pregnancy and breastfeeding. People with impaired kidney function should avoid use, as diuretic effects may worsen fluid and electrolyte imbalance. Caution with concurrent diuretic medications. The EMA herbal monograph recognises traditional use at appropriate short-term doses in adults only (European Medicines Agency, 2016; Sandhu et al., 2010).
Duke (2002) rates horsetail as + (moderate caution) and notes clinical evidence (score 2) for its diuretic and wound-healing (vulnerary) activities, consistent with Commission E approval. High silica content may strengthen connective tissue, hair, and nails. Dose: 6 g dried herb daily as tea or in capsules. Horsetail contains thiaminase (breaks down vitamin B1) and an unidentified neurotoxin — it should not be taken long-term or in large quantities. Not for use in patients with edema due to cardiac or renal insufficiency, and avoid in children under 12 (Duke, 2002).
Generally very safe and well tolerated. Rare cases of digestive upset or allergic reaction. No significant known drug interactions at normal doses. The PSK pharmaceutical form is used safely alongside standard cancer treatments. Suitable for most adults.
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Botanical Description
Perennial, spore-bearing (non-flowering) plant with two distinct stem types arising from a deep, black, jointed rhizome. In early spring, unbranched, pale brownish fertile stems appear first, each topped with a spore-bearing cone, and die back once spores are shed; these are followed by the familiar green, hollow, jointed, ridged sterile stems bearing whorls of thin, needle-like branches at each node, giving a bottlebrush appearance.
Bracket fungus (not a true plant) forming thin, tough, fan-shaped, overlapping shelves on dead or decaying hardwood, with a velvety, concentrically zoned upper surface in bands of brown, tan, cream, blue-grey and rust, and a white, minutely pored underside.
Habitat
Grows in damp grassland, waste ground, riverbanks, roadsides and disturbed soil on a wide range of soils; native and common across the temperate Northern Hemisphere (Europe, Asia, North America).
Grows on dead, dying or fallen hardwood logs, stumps and branches in woodlands worldwide, including Europe, Asia and North America.
Harvesting
The green sterile stems are cut in summer, at their most vigorous, and dried quickly in a warm, shaded, airy place; careful identification against the more toxic marsh horsetail (Equisetum palustre), which grows in similar damp ground, is essential before wild-harvesting.
Fresh brackets are harvested by cutting from the wood; for medicinal use the tough fruiting body is typically dried and then decocted (simmered) for a long time, or extracted, since the beneficial polysaccharides are not well-extracted by simple infusion.
Traditional Uses
Field horsetail has a long European folk history as a diuretic remedy for urinary gravel and mild fluid retention, as an astringent, anti-inflammatory and vulnerary herb for wounds and connective-tissue support, and, owing to its very high silica content, as a traditional tonic for hair, nails and skin.[11]
Turkey tail has a long history of use in traditional Chinese medicine (as yun zhi) and is one of the most researched medicinal mushrooms, with standardized polysaccharide-K (PSK) and polysaccharopeptide (PSP) extracts used clinically in Japan and China alongside conventional cancer treatment to support immune function.[11, 12, 13]
Preparations
Dried sterile stem simmered or infused in hot water as a traditional diuretic and connective-tissue-support tea.
Dried fruiting body simmered in water for an extended period (often 1-2 hours) to extract the beta-glucan polysaccharides, then strained.
Standardized polysaccharide-K (PSK) or polysaccharopeptide (PSP) extract, the pharmaceutical-grade forms used in clinical research.
Dosage
The EU herbal monograph gives a single dose of 1-4 g of the comminuted herb in 150 mL of boiling water as an infusion or decoction (5-15 minutes), 3-4 times daily, for a daily dose of 3-12 g, in adolescents, adults and elderly; traditionally used over a period of 2 to 4 weeks. For cutaneous use, 10 g in 1 L of water as a decoction for impregnated dressings and irrigation. Not recommended under 12 years. Educational reference only, not a prescription.
Clinical research on PSK commonly uses around 3 g daily in divided doses. Educational reference only, not a prescription.
References
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References & Sources
- Hegedus, C., Muresan, M., Badale, A., Bombicz, M. and others (2020) 'SIRT1 Activation by Equisetum arvense L. (Horsetail) Modulates Insulin Sensitivity in Streptozotocin Induced Diabetic Rats', Molecules, 25(11), pp. 2541. doi:10.3390/molecules25112541 Preclinical
https://doi.org/10.3390/molecules25112541 - Dragos, D., Gilca, M., Gaman, L., Vlad, A., Iosif, L. et al (2017) 'Phytomedicine in Joint Disorders', Nutrients, 9(1), pp. 70. doi:10.3390/nu9010070 Traditional / reference
https://doi.org/10.3390/nu9010070 - Grundemann, C., Lengen, K., Sauer, B., Garcia-Kaufer, M. and others (2014) 'Equisetum arvense (common horsetail) modulates the function of inflammatory immunocompetent cells', BMC Complementary and Alternative Medicine, 14, pp. 283. doi:10.1186/1472-6882-14-283 Preclinical
https://doi.org/10.1186/1472-6882-14-283 - Wang, L., Zhang, L., Zheng, G. and Luo, H (2021) 'Equisetum arvense L aqueous extract: a novel chemotherapeutic supplement for treatment of human colon carcinoma', Archives of Medical Science, 19(5), pp. 1472-1478. doi:10.5114/aoms/138146 Preclinical
https://doi.org/10.5114/aoms/138146 - Jeong, S.Y., Yu, H.S., Ra, M.J., Jung, S.M. and others (2023) 'Phytochemical Investigation of Equisetum arvense and Evaluation of Their Anti-Inflammatory Potential in TNFalpha/INFgamma-Stimulated Keratinocytes', Pharmaceuticals, 16(10), pp. 1478. doi:10.3390/ph16101478 Preclinical
https://doi.org/10.3390/ph16101478 - Klncalp, S., Ekiz, F., Basar, O., Coban, S. and others (2012) 'Equisetum arvense (Field Horsetail)-induced liver injury', European Journal of Gastroenterology & Hepatology, 24(2), pp. 213-214. doi:10.1097/MEG.0b013e32834e7ff0 Preclinical
https://doi.org/10.1097/MEG.0b013e32834e7ff0 - Maeda, H., Miyamoto, K. and Sano, T (1997) 'Occurrence of dermatitis in rats fed a cholesterol diet containing field horsetail (Equisetum arvense L.)', Journal of Nutritional Science and Vitaminology, 43(5), pp. 553-563. doi:10.3177/jnsv.43.553 Preclinical
https://doi.org/10.3177/jnsv.43.553 - Saslis-Lagoudakis, C.H., Bruun-Lund, S., Iwanycki, N.E., Seberg, O. and others (2015) 'Identification of common horsetail (Equisetum arvense L.; Equisetaceae) using Thin Layer Chromatography versus DNA barcoding', Scientific Reports, 5, pp. 11942. doi:10.1038/srep11942 Preclinical
https://doi.org/10.1038/srep11942 - Mimica-Dukic, N., Simin, N., Cvejic, J., Jovin, E. and others (2008) 'Phenolic compounds in field horsetail (Equisetum arvense L.) as natural antioxidants', Molecules, 13(7), pp. 1455-1464. doi:10.3390/molecules13071455 Preclinical
https://doi.org/10.3390/molecules13071455 - Tufarelli, V., Baghban-Kanani, P., Azimi-Youvalari, S., Hosseintabar-Ghasemabad, B. and others (2021) 'Effects of Horsetail (Equisetum arvense) and Spirulina (Spirulina platensis) Dietary Supplementation on Laying Hens Productivity and Oxidative Status', Animals, 11(2), pp. 335. doi:10.3390/ani11020335 Preclinical
https://doi.org/10.3390/ani11020335 - Carneiro, D.M., Marques, L.C., Velasques, L.O. et al (2016) 'Randomized, double-blind clinical trial to assess the acute diuretic effect of Equisetum arvense (Field Horsetail) in healthy volunteers'. doi:10.1155/2014/760683 Randomized trial
https://doi.org/10.1155/2014/760683 - European Medicines Agency (2016) 'European Union herbal monograph on Equisetum arvense L., herba'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-equisetum-arvense-l-herba_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-equisetum-arvense-l-herba_en.pdf - http://LatvijasDaba.lv (n.d.) 'tīruma kosa – Equisetum arvense L'. Available at: http://LatvijasDaba.lv Traditional / reference
http://LatvijasDaba.lv - Royal Botanic Gardens, Kew (n.d.) 'Equisetum arvense L'. Available at: https://powo.science.kew.org/taxon/urn:lsid:http://ipni.org:names:17003330-1 Traditional / reference
https://powo.science.kew.org/taxon/urn:lsid:http://ipni.org:names:17003330-1 - Sandhu, N.S., Kaur, S. and Chopra, D (2010) 'Equisetum arvense: pharmacology and phytochemistry — a review', 3(3), pp. 146--150. Traditional / reference
https://scholar.google.com/scholar?q=Equisetum%20arvense%3A%20pharmacology%20and%20phytochemistry%20%E2%80%94%20a%20review - 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 - NatureSpot 'Marsh Horsetail - Equisetum palustre'. Available at: https://www.naturespot.org/species/marsh-horsetail Traditional / reference
https://www.naturespot.org/species/marsh-horsetail - Muller, J. and Puttich, P.M. and Beuerle, T (2020) 'Variation of the Main Alkaloid Content in Equisetum palustre L. in the Light of Its Ontogeny', Toxins, 12(11), pp. 710. doi:10.3390/toxins12110710 Preclinical
https://doi.org/10.3390/toxins12110710 - Ibi, A. and Du, M. and Beuerle, T. and Melchert, D. and Solnier, J. and Chang, C (2022) 'A Multi-Pronged Technique for Identifying Equisetum palustre and Equisetum arvense - Combining HPTLC, HPLC-ESI-MS/MS and Optimized DNA Barcoding Techniques', Plants, 11(19), pp. 2562. doi:10.3390/plants11192562 Preclinical
https://doi.org/10.3390/plants11192562
- Pilkington, K., Wieland, L.S., Teng, L., Jin, X.Y. and others (2022) 'Coriolus (Trametes) versicolor mushroom to reduce adverse effects from chemotherapy or radiotherapy in people with colorectal cancer', Cochrane Database of Systematic Reviews, 11(11), pp. CD012053. doi:10.1002/14651858.CD012053.pub2 Meta-analysis / review
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https://scholar.google.com/scholar?q=Trametes%20versicolor%20mushroom%20immune%20therapy%20in%20breast%20cancer - Wasser, S.P (2011) 'Current findings, future trends, and unsolved problems in studies of medicinal mushrooms', 89(5), pp. 1323--1332. doi:10.1007/s00253-010-3067-4 Randomized trial
https://doi.org/10.1007/s00253-010-3067-4 - 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 - Macalester College, Katharine Ordway Natural History Study Area 'Turkey Tail Fungus (Trametes versicolor)'. Available at: https://www.macalester.edu/ordway/biodiversity/inventory/turkeytailfungus/ Traditional / reference
https://www.macalester.edu/ordway/biodiversity/inventory/turkeytailfungus/ - Missouri Department of Conservation 'False Turkey Tail (Stereum ostrea)'. Available at: https://mdc.mo.gov/discover-nature/field-guide/false-turkey-tail Traditional / reference
https://mdc.mo.gov/discover-nature/field-guide/false-turkey-tail - Kuo, Michael 'Stereum ostrea (False Turkey Tail)'. Available at: https://www.mushroomexpert.com/stereum_ostrea.html Traditional / reference
https://www.mushroomexpert.com/stereum_ostrea.html
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.