Plant Comparison
Birch vs Purple coneflower
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
Birch and Purple coneflower: they share 6 indicated uses (arthritis / joint pain, cold & flu, infection (general), …); 2 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Birch | Purple coneflower | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 1/10 | Comparable evidence |
| Cold & flu | 1/10 | 1/10 | Comparable evidence |
| Infection (general) | 1/10 | 1/10 | Comparable evidence |
| Inflammation (general) | 1/10 | 1/10 | Comparable evidence |
| Skin irritation | 1/10 | 1/10 | Comparable evidence |
| Wounds | 1/10 | 1/10 | 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
Principal diuretic and antioxidant constituents of the leaf.
Characteristic bark triterpenes, betulin giving birch bark its white colour; studied for anticancer and anti-inflammatory activity.
Contribute to the astringent and antioxidant properties of the bark and leaf.
Lipophilic alkamides are considered key immunomodulatory and anti-inflammatory constituents, particularly concentrated in the root.
Antioxidant phenolic compounds contributing to the plant's immunomodulatory activity.
Water-soluble polysaccharides associated with immune-stimulating activity, particularly from the aerial parts.
Pharmacological Actions
Traditional & Indicated Uses
inferred from gastroprotective action
inferred from anti-inflammatory action
inferred from anti-rheumatic action
inferred from antidiabetic action
inferred from anticancer action
inferred from gastroprotective action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from antidiabetic 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 immunomodulator action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
Generally considered safe when used appropriately. Side effects may include diarrhea, nausea, and allergic reactions (itching, rash, stuffy nose). Not recommended for individuals with edema caused by heart or kidney dysfunction. Ensure adequate fluid intake when using as a diuretic. Frequency of side effects is unknown.
Duke (2002) provides clinical evidence (score 2) for birch leaf's diuretic activity, as well as for its use in urinary gravel, kidney stones, and rheumatic conditions — consistent with Commission E (KOM) and German Phytotherapy (PIP) approvals. It acts as an aquaretic, increasing urine volume without electrolyte loss. Antimelanomic activity has been demonstrated in experimental studies. The plant has a good safety profile and is classified as non-toxic at usual therapeutic doses (Duke, 2002).
Generally considered safe, but caution advised for those with autoimmune conditions. Not recommended for long-term use (more than 8 weeks continuously).
Duke (2002) rates echinacea as +++ — among the most thoroughly documented herbal immunostimulants. It notes experimental and clinical evidence for immunostimulant, antiviral, and anti-inflammatory activities. Multiple species have been studied (E. purpurea, E. angustifolia, E. pallida), and Duke emphasizes that species identification in commercial products is often unreliable. Commission E approves E. purpurea for supporting immune function during colds and flu. Dose: 900 mg standardized extract daily in acute use; use should be limited to 8 weeks continuous. Contraindicated in autoimmune diseases (MS, lupus, HIV/AIDS), tuberculosis, and with immunosuppressive drugs (cyclosporine) (Duke, 2002).
External Ids
Botanical Description
Elegant deciduous tree with a slender trunk, distinctive smooth white bark that peels in papery horizontal strips and becomes dark and fissured near the base with age, and characteristically drooping ('pendulous') branchlets. The leaves are small, triangular to diamond-shaped, doubly toothed and long-pointed. Male and female flowers are borne in separate catkins on the same tree in spring.[1]
Robust perennial herb with a basal rosette of coarse, hairy, lance-shaped leaves and tall, sturdy flowering stems. Each stem bears a single large, daisy-like flower head with drooping (reflexed), rose-purple to pink ray florets surrounding a prominent, spiny, orange-brown central cone of disc florets.[4]
Habitat
A pioneer tree of light, well-drained, often poor or acidic soils, growing in woodland, heathland and waste ground across Europe and much of temperate Asia.[1]
Native to the tallgrass prairies, open woodland and dry meadows of central and eastern North America; widely cultivated worldwide as a garden and medicinal plant.[4]
Harvesting
Leaves are picked in spring and early summer while young and tender; bark is collected from felled or fallen wood (living trees should not be stripped of bark, which can kill them); sap is tapped in early spring, before leaf-out, through a small hole bored in the trunk.[1]
The flower heads are picked as they open, in summer; the root is dug in autumn from plants at least two to three years old, when its content of bioactive alkamides and caffeic acid derivatives is highest, then cleaned and dried.[4]
Traditional Uses
Birch leaf is a classic European 'aquaretic' diuretic used for urinary gravel, kidney stones and as a spring detoxifying tonic, and for rheumatic and joint complaints; the bark and its extracts have a long folk history for skin conditions, while the sap has been drunk fresh as a traditional spring tonic.[1]
Echinacea root was widely used by Native American peoples as a remedy for infections, wounds, snakebite and toothache, and entered nineteenth-century Eclectic medicine as a broad anti-infective. It remains best known today, in standardised aerial-part or root extracts, as a supportive remedy for preventing and shortening the common cold and supporting immune function.[1, 4]
Preparations
Fresh-pressed juice or standardised extract of the aerial parts or root, taken as tablets, drops or capsules at the first sign of a cold; the best-studied clinical form.
Dosage
The EU herbal monograph gives 2-3 g of the comminuted leaf in 150 mL of boiling water as an infusion, up to 4 times daily, in adolescents, adults and elderly, with adequate fluid intake; dry extract at 0.25-1 g 4 times daily and liquid extract at 15 mL 2-3 times daily are also listed. Traditionally used over a period of 2-4 weeks. Not recommended under 12 years. Educational reference only, not a prescription.
Clinical trials for the common cold commonly use around 300-900 mg of standardised extract daily, started at the first sign of symptoms and continued for up to 7-10 days; continuous use beyond about 8 weeks is not recommended. Educational reference only, not a prescription.
References
Lookalikes Review
Drug Class Interactions
Not documented
References & Sources
- Rastogi, S., Pandey, M.M. and Kumar Singh Rawat, A (2014) 'Medicinal plants of the genus Betula — traditional uses and a phytochemical-pharmacological review', Journal of Ethnopharmacology, 159, pp. 62-83. doi:10.1016/j.jep.2014.11.010 Traditional / reference
https://doi.org/10.1016/j.jep.2014.11.010 - Penkov, D., Andonova, V., Delev, D. and Kostadinov, I (2018) 'Antioxidant Activity of Dry Birch (Betula pendula) Leaves Extract', Folia Medica, 60(4), pp. 571-579. doi:10.2478/folmed-2018-0035 Preclinical
https://doi.org/10.2478/folmed-2018-0035 - Sevastre-Berghian, A.C., Ielciu, I., Bab, T., Olah, N.K. et al (2023) 'Betula pendula Leaf Extract Targets the Interplay between Brain Oxidative Stress, Inflammation, and NF-kB Pathways in Amyloid Abeta-Treated Rats', Antioxidants (Basel), 12(12), pp. 2110. doi:10.3390/antiox12122110 Preclinical
https://doi.org/10.3390/antiox12122110 - Grundemann, C., Gruber, C.W., Hertrampf, A., Zehl, M., Kopp, B. and Huber, R (2011) 'An aqueous birch leaf extract of Betula pendula inhibits the growth and cell division of inflammatory lymphocytes', Journal of Ethnopharmacology, 136(3), pp. 444-451. doi:10.1016/j.jep.2011.05.018 Preclinical
https://doi.org/10.1016/j.jep.2011.05.018 - Azman, N.A.M., Skowyra, M., Muhammad, K., Gallego, M.G. and Almajano, M.P (2017) 'Evaluation of the antioxidant activity of Betula pendula leaves extract and its effects on model foods', Pharmaceutical Biology, 55(1), pp. 912-919. doi:10.1080/13880209.2017.1282528 Preclinical
https://doi.org/10.1080/13880209.2017.1282528 - Bljajic, K., Sostaric, N., Petlevski, R., Vujic, L., Brajkovic, A. and Fumic, B (2016) 'Effect of Betula pendula Leaf Extract on alpha-Glucosidase and Glutathione Level in Glucose-Induced Oxidative Stress', Evidence-Based Complementary and Alternative Medicine, 2016, pp. 8429398. doi:10.1155/2016/8429398 Preclinical
https://doi.org/10.1155/2016/8429398 - Ou-Yang, T., Zhang, Y., Luo, H.Z., Liu, Y. and Ma, S.C (2023) 'Novel compounds discovery approach based on UPLC-QTOF-MS/MS chemical profile reveals birch bark extract anti-inflammatory, -oxidative, and -proliferative effects', Journal of Ethnopharmacology, 309, pp. 116148. doi:10.1016/j.jep.2023.116148 Preclinical
https://doi.org/10.1016/j.jep.2023.116148 - Szoka, L., Nazaruk, J., Stocki, M. and Isidorov, V (2021) 'Santin and cirsimaritin from Betula pubescens and Betula pendula buds induce apoptosis in human digestive system cancer cells', Journal of Cellular and Molecular Medicine, 25(23), pp. 11085-11096. doi:10.1111/jcmm.17031 Preclinical
https://doi.org/10.1111/jcmm.17031 - Isidorov, V., Szoka, L. and Nazaruk, J (2018) 'Cytotoxicity of white birch bud extracts: Perspectives for therapy of tumours', PLoS One, 13(8), pp. e0201949. doi:10.1371/journal.pone.0201949 Preclinical
https://doi.org/10.1371/journal.pone.0201949 - Efthimiou, I., Vlastos, D., Triantafyllidis, V., Eleftherianos, A. and Antonopoulou, M (2022) 'Investigation of the Genotoxicological Profile of Aqueous Betula pendula Extracts', Plants, 11(20), pp. 2673. doi:10.3390/plants11202673 Preclinical
https://doi.org/10.3390/plants11202673 - Jafari Hajati, R., Payamnoor, V., Ahmadian Chashmi, N. and Ghasemi Bezdi, K (2018) 'Improved accumulation of betulin and betulinic acid in cell suspension culture of Betula pendula Roth by abiotic and biotic elicitors', Preparative Biochemistry & Biotechnology, 48(10), pp. 915-924. doi:10.1080/10826068.2018.1514514 Preclinical
https://doi.org/10.1080/10826068.2018.1514514 - European Medicines Agency (HMPC) (2015) 'European Union herbal monograph on Betula pendula Roth and/or Betula pubescens Ehrh. as well as hybrids of both species, folium'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-betula-pendula-roth-betula-pubescens-ehrh-folium_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-betula-pendula-roth-betula-pubescens-ehrh-folium_en.pdf - European Medicines Agency (HMPC) (2015) 'Birch leaf (Betulae folium): summary for the public'. Available at: https://www.ema.europa.eu/en/documents/herbal-summary/birch-leaf-summary-public_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-summary/birch-leaf-summary-public_en.pdf - Oszmiański J, et al. Evaluating birch leaf tea as a functional herbal beverage. Food Res Int. 2024. https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519 https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/ (2024) 'https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519 https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/'. Available at: https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519 Traditional / reference
https://www.sciencedirect.com/science/article/abs/pii/S0963996924005519 - Rastogi S, Pandey MM, Rawat AKS. Medicinal plants of the genus Betula—Traditional uses and a phytochemical–pharmacological review. J Ethnopharmacol. 2015;159:62-83. https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/ (2015) ';159:62-83'. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/ Traditional / reference
https://pmc.ncbi.nlm.nih.gov/articles/PMC7126499/ - 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
- Karsch-Völk, M., Barrett, B., Kiefer, D., Bauer, R. et al (2014) 'Echinacea for preventing and treating the common cold', Cochrane Database of Systematic Reviews, 2(2), pp. CD000530. doi:10.1002/14651858.CD000530.pub3 Meta-analysis / review
https://doi.org/10.1002/14651858.CD000530.pub3 - Kamin, W., Seifert, G., Zwiauer, K., Bonhoeffer, J. et al (2025) 'Phytotherapy for acute respiratory tract infections in children: a systematically conducted, comprehensive review', Frontiers in Pediatrics, 13, pp. 1423250. doi:10.3389/fped.2025.1423250 Meta-analysis / review
https://doi.org/10.3389/fped.2025.1423250 - Fashner, J., Ericson, K. and Werner, S (2012) 'Treatment of the common cold in children and adults', American Family Physician, 86(2), pp. 153-159. Available at: https://pubmed.ncbi.nlm.nih.gov/22962927/ Traditional / reference
https://pubmed.ncbi.nlm.nih.gov/22962927/ - Manayi, A., Vazirian, M. and Saeidnia, S (2015) 'Echinacea purpurea: Pharmacology, phytochemistry and analysis methods', Pharmacognosy Reviews, 9(17), pp. 63-72. doi:10.4103/0973-7847.156353 Meta-analysis / review
https://doi.org/10.4103/0973-7847.156353 - Burlou-Nagy, C., Banica, F., Jurca, T., Vicas, L.G., Marian, E., Muresan, M.E., Bacskay, I., Kiss, R., Feher, P. and Pallag, A (2022) 'Echinacea purpurea (L.) Moench: Biological and Pharmacological Properties. A Review', Plants, 11(9), pp. 1244. doi:10.3390/plants11091244 Meta-analysis / review
https://doi.org/10.3390/plants11091244 - Hall, H., Fahlman, M.M. and Engels, H.J (2007) 'Echinacea purpurea and mucosal immunity', International Journal of Sports Medicine, 28(9), pp. 792-797. doi:10.1055/s-2007-964895 Randomized trial
https://doi.org/10.1055/s-2007-964895 - Ross, S.M (2016) 'Echinacea purpurea: A Proprietary Extract of Echinacea purpurea Is Shown to be Safe and Effective in the Prevention of the Common Cold', Holistic Nursing Practice, 30(1), pp. 54-57. doi:10.1097/HNP.0000000000000130 Meta-analysis / review
https://doi.org/10.1097/HNP.0000000000000130 - Hudson, J.B (2011) 'Applications of the phytomedicine Echinacea purpurea (Purple Coneflower) in infectious diseases', Journal of Biomedicine & Biotechnology, 2012, pp. 769896. doi:10.1155/2012/769896 Meta-analysis / review
https://doi.org/10.1155/2012/769896 - Mishima, S., Saito, K., Maruyama, H., Inoue, M., Yamashita, T., Ishida, T. and Gu, Y (2004) 'Antioxidant and immuno-enhancing effects of Echinacea purpurea', Biological & Pharmaceutical Bulletin, 27(7), pp. 1004-1009. doi:10.1248/bpb.27.1004 Preclinical
https://doi.org/10.1248/bpb.27.1004 - Saunders, P.R., Smith, F. and Schusky, R.W (2007) 'Echinacea purpurea L. in children: safety, tolerability, compliance, and clinical effectiveness in upper respiratory tract infections', Canadian Journal of Physiology and Pharmacology, 85(11), pp. 1195-1199. doi:10.1139/Y07-103 Clinical study
https://doi.org/10.1139/Y07-103 - Micheli, L., Maggini, V., Ciampi, C., Gallo, E., Bogani, P., Fani, R., Pistelli, L., Ghelardini, C., Di Cesare Mannelli, L., De Leo, M. and Firenzuoli, F (2022) 'Echinacea purpurea against neuropathic pain: Alkamides versus polyphenols efficacy', Phytotherapy Research, 37(5), pp. 1911-1923. doi:10.1002/ptr.7709 Preclinical
https://doi.org/10.1002/ptr.7709 - Gholami, M., Amri, J., Pazhoohan, S. and Sadegh, M (2021) 'Anticonvulsive and anti-epileptogenesis effects of Echinacea purpurea root extract, an involvement of CB2 receptor', Journal of Complementary & Integrative Medicine, 19(4), pp. 879-886. doi:10.1515/jcim-2020-0219 Preclinical
https://doi.org/10.1515/jcim-2020-0219 - Awortwe, C., Bruckmueller, H., Kaehler, M. and Cascorbi, I (2021) 'Interaction of Phytocompounds of Echinacea purpurea with ABCB1 and ABCG2 Efflux Transporters', Molecular Pharmaceutics, 18(4), pp. 1622-1633. doi:10.1021/acs.molpharmaceut.0c01075 Preclinical
https://doi.org/10.1021/acs.molpharmaceut.0c01075 - Perry, N.B., van Klink, J.W., Burgess, E.J. and Parmenter, G.A (1997) 'Alkamide levels in Echinacea purpurea: a rapid analytical method revealing differences among roots, rhizomes, stems, leaves and flowers', Planta Medica, 63(1), pp. 58-62. doi:10.1055/s-2006-957605 Preclinical
https://doi.org/10.1055/s-2006-957605 - Linde, K., Barrett, B., Wölkart, K., Bauer, R. and Melchart, D (2006) 'Echinacea for preventing and treating the common cold'. Traditional / reference
https://scholar.google.com/scholar?q=Echinacea%20for%20preventing%20and%20treating%20the%20common%20cold - Sharma, M., Schoop, R., Suter, A. and Schoop, W (2010) 'The possibility of prophylactic treatment of streptococcal pharyngotonsillitis with a standardized Echinacea preparation', 29(8), pp. 1025--1035. Traditional / reference
https://scholar.google.com/scholar?q=The%20possibility%20of%20prophylactic%20treatment%20of%20streptococcal%20pharyngotonsillitis%20with%20a%20standardized%20Echinacea%20preparation - World Health Organization (1999) 'WHO Monographs on Selected Medicinal Plants'. Traditional / reference
https://scholar.google.com/scholar?q=WHO%20Monographs%20on%20Selected%20Medicinal%20Plants - 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 - Gorski, J.C., Huang, S.M., Pinto, A., Hamman, M.A., Hilligoss, J.K., Zaheer, N.A., Desai, M., Miller, M. and Hall, S.D (2004) 'The effect of echinacea (Echinacea purpurea root) on cytochrome P450 activity in vivo', Clinical Pharmacology and Therapeutics, 75(1), pp. 89-100. doi:10.1016/j.clpt.2003.09.013 Clinical study
https://doi.org/10.1016/j.clpt.2003.09.013
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.