Plant Comparison
Purple coneflower vs Chickweed
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
Purple coneflower and Chickweed: they share 3 indicated uses (arthritis / joint pain, inflammation (general), skin irritation); 1 pharmacological action in common.
Evidence face-off — shared uses
| Condition | Purple coneflower | Chickweed | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 2/10 | Comparable evidence |
| Inflammation (general) | 1/10 | 2/10 | Comparable evidence |
| Skin irritation | 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
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.
Contribute to antioxidant and anti-inflammatory activity.
Minor constituents; large amounts of fresh herb have anecdotally been linked to mild gastrointestinal upset, possibly related to saponin content.
Nutritive constituents supporting its traditional use as a wild edible green.
Pharmacological Actions
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from immunomodulator action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
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).
Don’t overdo it as food: some wild-edible-plant research flags chickweed among plants checked for oxalic acid / nitrates—fine in normal amounts, but “huge daily servings” aren’t a smart idea for everyone. (Guil et al., 1997). Kidney stones / high-oxalate diets: if you’re prone to calcium-oxalate stones, treat chickweed like other higher-oxalate greens—moderation. (Guil et al., 1997). Possible stomach upset in large amounts (nausea/diarrhea reported anecdotally; some sources link this to saponins and “too much fresh herb”). (Singh et al., 2022). Pregnancy / breastfeeding: because good human data is limited, many herbal references advise sticking to food amounts or avoiding medicinal dosing unless guided by a professional. (Singh et al., 2022).
Duke (2002) notes that chickweed has primarily folkloric (score f) activity as a demulcent, emollient, and depurative. Its main medicinal applications are external — including soothing inflamed skin, eczema, and itching. No strong clinical evidence supports specific internal medicinal uses. The plant contains flavonoids and coumarins. It is considered generally safe as a dietary green and in topical preparations, though no standardized dosages are established (Duke, 2002).
External Ids
Botanical Description
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]
Low, sprawling annual herb (Caryophyllaceae) forming mats, with weak trailing stems bearing a single line of fine hairs running up one side, switching sides at each leaf node - a key identification feature. Leaves are opposite, ovate and pointed. Tiny white, star-shaped flowers have five deeply notched petals that appear as ten, followed by a small capsule.[1]
Habitat
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]
Native to Europe, now a cosmopolitan weed found worldwide, growing in disturbed ground, gardens, cultivated land and waste places, tolerating cool, moist conditions.[1]
Harvesting
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]
The whole aerial plant is gathered fresh, ideally in spring or autumn when most tender, and used fresh or dried.[1]
Traditional Uses
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]
Chickweed has a long European and North American folk-medicine tradition as a cooling, soothing emollient for itchy, inflamed skin conditions such as eczema, and as a nutritious wild spring green. Modern phytochemical review confirms broad anti-inflammatory and antioxidant activity, though clinical trial evidence remains limited.[1, 11]
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.
Crushed fresh herb, or an infused oil/salve, applied to itchy, irritated or inflamed skin.
Dosage
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
Drug Class Interactions
Not documented
Lookalikes Review
Dangerous Lookalikes
Not documented
References & Sources
- 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
- Oladeji, O.S., Oyebamiji, A.K (2020) 'Stellaria media (L.) Vill. - A plant with immense therapeutic potentials: phytochemistry and pharmacology', Heliyon, 6(6), pp. e04150. doi:10.1016/j.heliyon.2020.e04150 Traditional / reference
https://doi.org/10.1016/j.heliyon.2020.e04150 - Demjan, V., Sojka, L., Slezak, P., Kaprinay, B. and others (2021) 'Stellaria media tea protects against diabetes-induced cardiac dysfunction in rats without affecting glucose tolerance', Journal of Traditional and Complementary Medicine, 12(3), pp. 250-259. doi:10.1016/j.jtcme.2021.08.003 Preclinical
https://doi.org/10.1016/j.jtcme.2021.08.003 - Demjan, V., Kaprinay, B., Sotnikova, R., Knezl, V. and others (2020) 'Effect of Stellaria media Tea on Lipid Profile in Rats', Evidence-Based Complementary and Alternative Medicine, 2020, pp. 5109328. doi:10.1155/2020/5109328 Preclinical
https://doi.org/10.1155/2020/5109328 - Aleem, M., Khan, R.A., Tabassum, N. and others (2023) 'Phytochemical analysis and gastroprotective effect of Stellaria media (L.) Vill. methanolic extract on piroxicam-induced gastric ulcer in Wistar rats', Pakistan Journal of Pharmaceutical Sciences, 36(5), pp. 1425-1434. doi:10.21203/rs.3.rs-1835268/v2 Preclinical
https://doi.org/10.21203/rs.3.rs-1835268/v2 - Cusumano, G., Flores, G.A., Venanzoni, R., Angelini, P. and others (2024) 'Small Steps to the Big Picture for Health-Promoting Applications Through the Use of Chickweed (Stellaria media): In Vitro, In Silico, and Pharmacological Network Approaches', Food Science & Nutrition, 12(11), pp. 9295-9313. doi:10.1002/fsn3.4505 Preclinical
https://doi.org/10.1002/fsn3.4505 - Ahmad, S., Ullah, F., Ayaz, M., Sadiq, A. and others (2022) 'Lipid peroxidation reduction and hippocampal and cortical neurons protection against ischemic damage in animal model using Stellaria media', Saudi Journal of Biological Sciences, 29(3), pp. 1887-1892. doi:10.1016/j.sjbs.2021.10.033 Preclinical
https://doi.org/10.1016/j.sjbs.2021.10.033 - Chak, P., Kumar, S. and others (2024) 'In Vitro COX Inhibitory Activity, LC-MS Analysis and Molecular Docking Study of Silene vulgaris and Stellaria media', Cell Biochemistry and Biophysics, 83(1), pp. 1009-1020. doi:10.1007/s12013-024-01533-0 Preclinical
https://doi.org/10.1007/s12013-024-01533-0 - Chidrawar, V.R., Patel, K.N., Sheth, N.R., Shiromwar, S.S. and Trivedi, P (2011) 'Antiobesity effect of Stellaria media against drug induced obesity in Swiss albino mice', Ayu, 32(4), pp. 576-584. doi:10.4103/0974-8520.96137 Preclinical
https://doi.org/10.4103/0974-8520.96137 - Rogozhin, E.A., Slezina, M.P., Slavokhotova, A.A., Istomina, E.A. and others (2015) 'A novel antifungal peptide from leaves of the weed Stellaria media L', Biochimie, 116, pp. 125-132. doi:10.1016/j.biochi.2015.07.014 Preclinical
https://doi.org/10.1016/j.biochi.2015.07.014 - Slavokhotova, A.A., Shelenkov, A.A., Andreev, Y.A. and Odintsova, T.I (2017) 'Defense peptide repertoire of Stellaria media predicted by high throughput next generation sequencing', Biochimie, 135, pp. 15-27. doi:10.1016/j.biochi.2016.12.017 Preclinical
https://doi.org/10.1016/j.biochi.2016.12.017 - Chevallier, A (1996) 'The Encyclopedia of Medicinal Plants'. Traditional / reference
https://scholar.google.com/scholar?q=The%20Encyclopedia%20of%20Medicinal%20Plants - Grieve, M (1931) 'A Modern Herbal'. Traditional / reference
https://scholar.google.com/scholar?q=A%20Modern%20Herbal - Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
https://powo.science.kew.org - 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 - Ramsay, J.R. and Suhrbier, A. and Aylward, J.H. and Ogbourne, S. and Cozzi, S.-J. and Poulsen, M.G. and Baumann, K.C. and Welburn, P. and Redlich, G.L. and Parsons, P.G (2011) 'The sap from Euphorbia peplus is effective against human nonmelanoma skin cancers', British Journal of Dermatology, 164(3), pp. 633-6. doi:10.1111/j.1365-2133.2010.10184.x Clinical study
https://doi.org/10.1111/j.1365-2133.2010.10184.x - Merani, R. and Sa-Ngiampornpanit, T. and Kerdraon, Y. and Billson, F. and McClellan, K.A (2007) 'Euphorbia lactea sap keratouveitis: case report and review of the literature', Cornea, 26(6), pp. 749-52. doi:10.1097/ICO.0b013e31805444e5 Clinical study
https://doi.org/10.1097/ICO.0b013e31805444e5 - Fleischman, D. and Meyer, J.J. and Fowler, W.C (2012) 'Keratouveitis from Euphorbia cyparissias exposure is a temporal phenomenon', Clinical Ophthalmology, 6, pp. 851-3. doi:10.2147/OPTH.S32209 Clinical study
https://doi.org/10.2147/OPTH.S32209 - Bonetto, Diego 'On the wonderful chickweed, and its poisonous lookalike'. Available at: https://www.diegobonetto.com/blog/on-the-wonderful-chickweed-and-the-poisonous-lookalike Traditional / reference
https://www.diegobonetto.com/blog/on-the-wonderful-chickweed-and-the-poisonous-lookalike - Schneider, D.J (1978) 'Fatal ovine nephrosis caused by Anagallis arvensis L', Journal of the South African Veterinary Association, 49(4), pp. 321-4. Available at: https://pubmed.ncbi.nlm.nih.gov/752080/ Preclinical
https://pubmed.ncbi.nlm.nih.gov/752080/ - University of California Statewide IPM Program 'Scarlet Pimpernel (Anagallis arvensis) - Weed Gallery'. Available at: https://ipm.ucanr.edu/PMG/WEEDS/scarlet_pimpernel.html Traditional / reference
https://ipm.ucanr.edu/PMG/WEEDS/scarlet_pimpernel.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.