Plant Comparison
Midland Hawthorn vs Flaxseed
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
Midland Hawthorn and Flaxseed: they share 4 indicated uses (arthritis / joint pain, cardiovascular / heart health, inflammation (general), …); 2 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Midland Hawthorn | Flaxseed | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 3/10 | Stronger for Flaxseed |
| Cardiovascular / heart health | 1/10 | 6/10 | Stronger for Flaxseed |
| Inflammation (general) | 1/10 | 3/10 | Stronger for Flaxseed |
| Skin irritation | 1/10 | 3/10 | Stronger for Flaxseed |
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
The principal cardioactive and antioxidant constituents, the basis for extract standardisation.
Additional antioxidant constituents of the flower, leaf and fruit.
Flax is the richest dietary source of SDG-type lignans, converted by gut bacteria to the mammalian lignans enterodiol and enterolactone; studied for antioxidant and hormone-modulating activity.
The dominant fatty acid of the seed oil (~50-55% of total oil), a plant-based omega-3 studied for cardiovascular and anti-inflammatory effects.
Concentrated in the seed coat; gives flaxseed its demulcent, laxative, bulk-forming action.
Present at low levels; cooking/roasting reduces them to negligible amounts in normal food use - a theoretical concern only at high raw intakes.
Pharmacological Actions
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from sedative action
inferred from antispasmodic action
inferred from antispasmodic action
inferred from anti-inflammatory action
inferred from anticancer action
inferred from digestive action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
Generally safe and well tolerated. High doses may cause low blood pressure and sedation. May interact with cardiac glycosides (digoxin) and antihypertensive drugs. Consult a physician before using with existing heart medications.
Duke (2002) rates hawthorn (Crataegus spp., including C. laevigata) as a triple-plus herb (+++) with Commission E approval (score 2-3) for decreasing cardiac output in functional Stage II heart insufficiency (NYHA). Clinical evidence supports hawthorn standardized extracts (80-500 mg, standardized to flavonoids or procyanidins) for angina, arrhythmia, atherosclerosis, and hypertension. Hawthorn may potentiate digitalis and other cardiac medications and is not considered suitable for self-medication without professional guidance (Duke, 2002).
Flaxseeds are safe for most people at recommended food amounts (1–2 tablespoons ground/day). They must be ground or milled to be bioavailable — whole seeds largely pass through the gut undigested. High fibre content may cause bloating, flatulence, and loose stools, especially if fibre intake is increased rapidly without adequate hydration. Flaxseeds contain cyanogenic glycosides (linamarin, linustatin); cooking or roasting reduces these to negligible levels in normal food amounts. Raw seeds in very large quantities are a theoretical concern, but typical use is safe (EFSA, 2017).
Medication interactions: Flaxseed may reduce absorption of oral medications if taken simultaneously — space flaxseed supplementation 1–2 hours from medications. Omega-3 ALA and lignans may mildly enhance anticoagulant/antiplatelet effects; use caution with blood thinners. Some sources suggest caution with hormone-sensitive conditions due to phytoestrogen (lignan) content, though dietary amounts are unlikely to pose risk (Adolphe et al., 2010).
Pregnancy: Food amounts are generally considered safe; high-dose supplements should be discussed with a clinician due to limited safety data.
Duke (2002) rates flaxseed as +++ with clinical evidence (score 2) for antiatherogenic, hypocholesterolemic, laxative, lipolytic (fat-dissolving), and demulcent activities. Flaxseed's omega-3 fatty acids (ALA) and lignans are associated with reduced cardiovascular risk. Commission E approves flaxseed as a laxative and for mucilaginous protection of inflamed gastrointestinal mucosa. Dose: 1–2 tablespoons ground seed with ample water, twice daily. Whole seeds should be chewed or ground for full medicinal effect. Cyanogenic glycosides are present but at safe levels in normal dietary amounts (Duke, 2002).
External Ids
Botanical Description
Small deciduous tree or large shrub with thorny branches and glossy, shallowly lobed leaves (less deeply cut than common hawthorn). Clusters of small, five-petalled white (occasionally pink) flowers with a strong scent appear in spring, followed by small red berries (haws), each usually containing two seeds (nutlets).[1]
Erect annual herb, slender and often branched near the top, growing 30-80 (up to 100) cm tall from a fine taproot. Leaves are alternate, sessile, narrowly lanceolate to linear, blue-green and entire-margined. Flowers are pale blue (occasionally white or pink), five-petalled and borne on slender stalks in loose terminal cymes. The fruit is a small globular capsule ('boll') that splits into ten compartments, each containing one flattened, glossy, red-brown seed.[5]
Habitat
Grows in woodland, woodland edges, hedgerows and scrub, typically on richer, damper soils than common hawthorn; native to western and central Europe.[1]
Native to the Mediterranean region and the Fertile Crescent, cultivated since prehistory for fibre and oil and now grown worldwide in temperate regions with well-drained, fertile soils and a cool, moist growing season; occasionally found as a naturalised escape on waste and cultivated ground.[5]
Harvesting
Flowers are picked as they open in spring, leaves are picked with the young flowering shoots, and the ripe red berries (haws) are gathered in autumn; all three parts are used, often combined, in hawthorn preparations.[1]
Grown as an annual crop, seed is harvested once the capsules ('bolls') have dried and turned brown, typically in late summer, by cutting or combining the whole plant and threshing out the seed. Whole seed stores well; it should only be ground shortly before use, since the oil in ground seed oxidises and turns rancid quickly.[2]
Traditional Uses
Hawthorn flower, leaf and berry have a long European tradition, and substantial modern clinical study, as a cardiovascular tonic - supporting heart function, mild circulatory complaints and calming nervous tension - reflected in its traditional use for 'heart strengthening' and its modern standing as a well-studied botanical for mild heart failure symptoms.[1]
Flaxseed has a long history of traditional use as a bulk-forming laxative and demulcent for constipation and irritated gut mucosa, and as a poultice for boils and inflamed skin. Modern interest centres on its lignan (secoisolariciresinol diglucoside) and alpha-linolenic acid content, studied for cardiovascular, metabolic and hormone-related outcomes.[2, 4, 5]
Preparations
Leaf-and-flower extract standardised to flavonoid or oligomeric proanthocyanidin content, taken as tablets or capsules; the best-studied clinical form.
Whole seed freshly ground (milled) and taken with plenty of liquid, or stirred into food; grinding is needed to make the oil and lignans bioavailable, as whole seeds largely pass through the gut undigested.
Cold-pressed oil taken as a concentrated source of alpha-linolenic acid (omega-3); lacks the fibre and lignan content of the whole ground seed.
Dosage
The EU herbal monograph on Crataegus spp., folium cum flore gives dry extracts in divided daily doses of 240-900 mg (single dose 80-450 mg) or, for one quantified extract, 570-1750 mg daily (single dose 190-350 mg), in adults and elderly. If symptoms persist longer than 2 weeks a doctor should be consulted, and hawthorn is never used as a substitute for prescribed heart medication without medical supervision. Educational reference only, not a prescription.
The EU herbal monograph gives 1-2 g of the comminuted leaf and flower in 150 mL of boiling water as an infusion, up to 4 times daily (maximum 6 g daily), in adults and elderly. Educational reference only, not a prescription.
Traditional guidance and Duke (2002) suggest 1-2 tablespoons of ground seed with ample water, once or twice daily. Educational reference only, not a prescription.
A randomised placebo-controlled trial titrated flax oil capsules (550 mg alpha-linolenic acid per 1 g of oil) to 12 capsules per day, i.e. up to roughly 12 g of oil daily, over 16 weeks - broadly matching the 1-2 tablespoons (about 10-15 mL) daily often cited for omega-3 intake. That trial was in children and adolescents with bipolar disorder and its primary outcomes were null; it is cited here only as a source for an administered human dose of the oil, not as evidence of benefit. Note the EU herbal monograph on Lini semen covers the SEED, not the oil. Educational reference only, not a prescription.
References
Drug Class Interactions
Not documented
Lookalikes Review
References & Sources
- Fong, H.H.S. and Bauman, J.L (2002) 'Hawthorn', Journal of Cardiovascular Nursing, 16(4), pp. 1-8. doi:10.1097/00005082-200207000-00002 Traditional / reference
https://doi.org/10.1097/00005082-200207000-00002 - Orhan, I.E (2018) 'Phytochemical and Pharmacological Activity Profile of Crataegus oxyacantha L. (Hawthorn) - A Cardiotonic Herb', Current Medicinal Chemistry, 25(37), pp. 4854-4865. doi:10.2174/0929867323666160919095519 Traditional / reference
https://doi.org/10.2174/0929867323666160919095519 - Ahmadipour, B., Kalantar, M., Abaszadeh, S. and Hassanpour, H (2024) 'Antioxidant and antihyperlipidemic effects of hawthorn extract (Crataegus oxyacantha) in broiler chickens', Veterinary Medicine and Science, 10(3), pp. e1414. doi:10.1002/vms3.1414 Preclinical
https://doi.org/10.1002/vms3.1414 - Rigelsky, J.M. and Sweet, B.V (2002) 'Hawthorn: pharmacology and therapeutic uses', American Journal of Health-System Pharmacy, 59(5), pp. 417-422. doi:10.1093/ajhp/59.5.417 Meta-analysis / review
https://doi.org/10.1093/ajhp/59.5.417 - Saeedi, G., Jeivad, F., Goharbari, M., Gheshlaghi, G.H. and Sabzevari, O (2018) 'Ethanol Extract of Crataegus Oxyacantha L. Ameliorate Dietary Non-Alcoholic Fatty Liver Disease in Rat', Drug Research, 68(10), pp. 553-559. doi:10.1055/a-0579-7532 Preclinical
https://doi.org/10.1055/a-0579-7532 - Mecheri, A., Benabderrahmane, W., Amrani, A., Boubekri, N., Benayache, F., Benayache, S. and Zama, D (2019) 'Hepatoprotective Effects of Algerian Crataegus oxyacantha Leaves', Recent Patents on Food, Nutrition & Agriculture, 10(1), pp. 70-75. doi:10.2174/2212798410666180730095456 Preclinical
https://doi.org/10.2174/2212798410666180730095456 - Benabderrahmane, W., Lores, M., Benaissa, O., Lamas, J.P., de Miguel, T., Amrani, A., Benayache, F. and Benayache, S (2019) 'Polyphenolic content and bioactivities of Crataegus oxyacantha L. (Rosaceae)', Natural Product Research, 35(4), pp. 627-632. doi:10.1080/14786419.2019.1582044 Preclinical
https://doi.org/10.1080/14786419.2019.1582044 - Ali, M., Muhammad, S., Shah, M.R., Khan, A., Rashid, U., Farooq, U., Ullah, F., Sadiq, A., Ayaz, M., Ali, M., Ahmad, M. and Latif, A (2017) 'Neurologically Potent Molecules from Crataegus oxyacantha; Isolation, Anticholinesterase Inhibition, and Molecular Docking', Frontiers in Pharmacology, 8, pp. 327. doi:10.3389/fphar.2017.00327 Preclinical
https://doi.org/10.3389/fphar.2017.00327 - Cuevas-Duran, R.E., Medrano-Rodriguez, J.C., Sanchez-Aguilar, M., Soria-Castro, E., Rubio-Ruiz, M.E., Del Valle-Mondragon, L., Sanchez-Mendoza, A., Torres-Narvaez, J.C., Pastelin-Hernandez, G. and Ibarra-Lara, L (2017) 'Extracts of Crataegus oxyacantha and Rosmarinus officinalis Attenuate Ischemic Myocardial Damage by Decreasing Oxidative Stress and Regulating the Production of Cardiac Vasoactive Agents', International Journal of Molecular Sciences, 18(11), pp. 2412. doi:10.3390/ijms18112412 Preclinical
https://doi.org/10.3390/ijms18112412 - Alp, H., Soner, B.C., Baysal, T. and Sahin, A.S (2014) 'Protective effects of Hawthorn (Crataegus oxyacantha) extract against digoxin-induced arrhythmias in rats', Anatolian Journal of Cardiology, 15(12), pp. 970-975. doi:10.5152/akd.2014.5869 Preclinical
https://doi.org/10.5152/akd.2014.5869 - Rothfuss, M.A., Pascht, U. and Kissling, G (2001) 'Effect of long-term application of Crataegus oxyacantha on ischemia and reperfusion induced arrhythmias in rats', Arzneimittel-Forschung, 51(1), pp. 24-28. doi:10.1055/s-0031-1299998 Preclinical
https://doi.org/10.1055/s-0031-1299998 - Khan, A., Akram, M., Thiruvengadam, M., Daniyal, M., Zakki, S.A., Munir, N., Zainab, R., Heydari, M., Mosavat, S.H., Rebezov, M. and Shariati, M.A (2022) 'Anti-anxiety Properties of Selected Medicinal Plants', Current Pharmaceutical Biotechnology, 23(8), pp. 1041-1060. doi:10.2174/1389201022666210122125131 Meta-analysis / review
https://doi.org/10.2174/1389201022666210122125131 - Rastogi, S., Pandey, M.M. and Rawat, A.K.S (2015) 'Traditional herbs: a remedy for cardiovascular disorders', Phytomedicine, 23(11), pp. 1082-1089. doi:10.1016/j.phymed.2015.10.012 Meta-analysis / review
https://doi.org/10.1016/j.phymed.2015.10.012 - European Medicines Agency (2016) 'European Union herbal monograph on Crataegus spp., folium cum flore'. Traditional / reference
https://scholar.google.com/scholar?q=European%20Union%20herbal%20monograph%20on%20Crataegus%20spp.%2C%20folium%20cum%20flore - Hendel, N. and Hendel, M (2014) 'Hedgerow Medicine'. Traditional / reference
https://scholar.google.com/scholar?q=Hedgerow%20Medicine - Pittler, M.H., Guo, R. and Ernst, E (2008) 'Hawthorn extract for treating chronic heart failure'. Traditional / reference
https://scholar.google.com/scholar?q=Hawthorn%20extract%20for%20treating%20chronic%20heart%20failure - 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 - Tankanow, R., Tamer, H.R., Streetman, D.S., Smith, S.G., Welton, J.L., Annesley, T., Aaronson, K.D. and Bleske, B.E (2003) 'Interaction study between digoxin and a preparation of hawthorn (Crataegus oxyacantha)', Journal of Clinical Pharmacology, 43(6), pp. 637-642. doi:10.1177/0091270003253417 Randomized trial
https://doi.org/10.1177/0091270003253417 - Pittler, M.H., Guo, R. and Ernst, E (2008) 'Hawthorn extract for treating chronic heart failure', Cochrane Database of Systematic Reviews, 2008(1), pp. CD005312. doi:10.1002/14651858.CD005312.pub2 Meta-analysis / review
https://doi.org/10.1002/14651858.CD005312.pub2 - Pittler, M.H., Guo, R. and Ernst, E (2008) 'Hawthorn extract for treating chronic heart failure', Cochrane Database of Systematic Reviews, 2008(1), pp. CD005312. doi:10.1002/14651858.CD005312.pub2 Meta-analysis / review
https://doi.org/10.1002/14651858.CD005312.pub2 - Ghasemzadeh Rahbardar, M. and Hosseinzadeh, H (2024) 'Therapeutic potential of hypnotic herbal medicines: A comprehensive review', Phytotherapy Research, 38(6), pp. 3037-3059. doi:10.1002/ptr.8201 Meta-analysis / review
https://doi.org/10.1002/ptr.8201 - Block, K.I., Gyllenhaal, C. and Mead, M.N (2004) 'Safety and efficacy of herbal sedatives in cancer care', Integrative Cancer Therapies, 3(2), pp. 128-148. doi:10.1177/1534735404265003 Meta-analysis / review
https://doi.org/10.1177/1534735404265003
- Picur, B., Cebrat, M., Zabrocki, J. and Siemion, I.Z (2006) 'Cyclopeptides of Linum usitatissimum', Journal of Peptide Science, 12(9), pp. 569-574. doi:10.1002/psc.779 Preclinical
https://doi.org/10.1002/psc.779 - Basch, E., Bent, S., Collins, J., Dacey, C., Hammerness, P., Harrison, M., Smith, M., Szapary, P., Ulbricht, C., Vora, M. and Weissner, W (2007) 'Flax and flaxseed oil (Linum usitatissimum): a review by the Natural Standard Research Collaboration', Journal of the Society for Integrative Oncology, 5(3), pp. 92-105. doi:10.2310/7200.2007.005 Meta-analysis / review
https://doi.org/10.2310/7200.2007.005 - Chhillar, H., Chopra, P. and Ashfaq, M.A (2020) 'Lignans from linseed (Linum usitatissimum L.) and its allied species: retrospect, introspect and prospect', Critical Reviews in Food Science and Nutrition, 61(16), pp. 2719-2741. doi:10.1080/10408398.2020.1784840 Meta-analysis / review
https://doi.org/10.1080/10408398.2020.1784840 - Ansari, R., Zarshenas, M.M. and Dadbakhsh, A.H (2019) 'A review on pharmacological and clinical aspects of Linum usitatissimum L', Current Drug Discovery Technologies, 16(2), pp. 148-158. doi:10.2174/1570163815666180521101136 Meta-analysis / review
https://doi.org/10.2174/1570163815666180521101136 - Akter, Y., Junaid, M., Afrose, S.S., Nahrin, A., Alam, M.S., Sharmin, T., Akter, R. and Hosen, S.M.Z (2021) 'A comprehensive review on Linum usitatissimum medicinal plant: its phytochemistry, pharmacology, and ethnomedicinal uses', Mini Reviews in Medicinal Chemistry, 21(18), pp. 2801-2834. doi:10.2174/1389557521666210203153436 Meta-analysis / review
https://doi.org/10.2174/1389557521666210203153436 - Musazadeh, V., Abolghasemian, M., Kavyani, Z., Moridpour, A.H., Nazari, A. and Faghfouri, A.H (2024) 'The effects of flaxseed (Linum usitatissimum) supplementation on anthropometric indices: an updated systematic review and meta-analysis of randomized clinical trials', Complementary Therapies in Medicine, 84, pp. 103066. doi:10.1016/j.ctim.2024.103066 Meta-analysis / review
https://doi.org/10.1016/j.ctim.2024.103066 - Mueed, A., Shibli, S., Jahangir, M., Jabbar, S. and Deng, Z (2022) 'A comprehensive review of flaxseed (Linum usitatissimum L.): health-affecting compounds, mechanism of toxicity, detoxification, anticancer and potential risk', Critical Reviews in Food Science and Nutrition, 63(32), pp. 11081-11104. doi:10.1080/10408398.2022.2092718 Meta-analysis / review
https://doi.org/10.1080/10408398.2022.2092718 - Kaithwas, G., Mukherjee, A., Chaurasia, A.K. and Majumdar, D.K (2011) 'Anti-inflammatory, analgesic and antipyretic activities of Linum usitatissimum L. (flaxseed/linseed) fixed oil', Indian Journal of Experimental Biology, 49(12), pp. 932-938. Preclinical
https://scholar.google.com/scholar?q=Anti-inflammatory%2C%20analgesic%20and%20antipyretic%20activities%20of%20Linum%20usitatissimum%20L.%20%28flaxseed/linseed%29%20fixed%20oil - Rafieian-Kopaei, M., Shakiba, A., Sedighi, M. and Bahmani, M (2017) 'The analgesic and anti-inflammatory activity of Linum usitatissimum in Balb/c mice', Journal of Evidence-Based Complementary & Alternative Medicine, 22(4), pp. 892-896. doi:10.1177/2156587217717416 Preclinical
https://doi.org/10.1177/2156587217717416 - Sirotkin, A.V (2023) 'Influence of flaxseed (Linum usitatissimum) on female reproduction', Planta Medica, 89(6), pp. 608-615. doi:10.1055/a-2013-2966 Meta-analysis / review
https://doi.org/10.1055/a-2013-2966 - Thompson, L.U., Chen, J.M., Li, T., Strasser-Weippl, K. and Goss, P.E (2006) 'Dietary flaxseed alters tumor biological markers in postmenopausal breast cancer', 11(10), pp. 3828--3835. doi:10.1158/1078-0432.CCR-04-2326 Randomized trial
https://doi.org/10.1158/1078-0432.CCR-04-2326 - Adolphe, J.L., Whiting, S.J., Juurlink, B.H.J., Thorpe, L.U. and Alcorn, J (2010) 'Health effects with consumption of the flax lignan secoisolariciresinol diglucoside', 103(7), pp. 929--938. doi:10.1017/S0007114509992753 Clinical study
https://doi.org/10.1017/S0007114509992753 - Caligiuri, S.P.B., Edel, A.L., Aliani, M. and Pierce, G.N (2014) 'Flaxseed for hypertension: implications for improved cardiovascular risk', 16(12), pp. 499. doi:10.1007/s11906-014-0499-8 Randomized trial
https://doi.org/10.1007/s11906-014-0499-8 - European Food Safety Authority (2017) 'Safety of cyanogenic glycosides from flaxseed consumed as part of a usual diet', 15(11). doi:10.2903/j.efsa.2017.5026 Preclinical
https://doi.org/10.2903/j.efsa.2017.5026 - Harris, W.S (2012) 'Stearidonic acid as a surrogate for eicosapentaenoic acid in cardiovascular risk reduction: update and recommendation', 70(10), pp. 565--574. Traditional / reference
https://scholar.google.com/scholar?q=Stearidonic%20acid%20as%20a%20surrogate%20for%20eicosapentaenoic%20acid%20in%20cardiovascular%20risk%20reduction%3A%20update%20and%20recommendation - Latvijas valsts mežzinātnes institūts (n.d.) 'Linsēkla Latvijā'. Available at: https://www.silava.lv Traditional / reference
https://www.silava.lv - Pan, A., Sun, J., Chen, Y. et al (2009) 'Effects of a flaxseed-derived lignan supplement in type 2 diabetic patients: a randomized, double-blind, cross-over trial', 4(11). doi:10.1371/journal.pone.0007654 Randomized trial
https://doi.org/10.1371/journal.pone.0007654 - Royal Botanic Gardens, Kew (n.d.) 'Linum usitatissimum L'. Available at: https://powo.science.kew.org/taxon/urn:lsid:http://ipni.org:names:381313-1 Traditional / reference
https://powo.science.kew.org/taxon/urn:lsid:http://ipni.org:names:381313-1 - Gracious, B.L., Chirieac, M.C., Costescu, S., Finucane, T.L., Youngstrom, E.A. and Hibbeln, J.R (2010) 'Randomized, placebo-controlled trial of flax oil in pediatric bipolar disorder', Bipolar Disorders, 12(2), pp. 142-154. doi:10.1111/j.1399-5618.2010.00799.x Randomized trial
https://doi.org/10.1111/j.1399-5618.2010.00799.x - 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.