Plant Comparison
Arnica vs Scots Pine
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
Arnica and Scots Pine: they share 7 indicated uses (arthritis / joint pain, cancer (anticancer research), infection (general), …); 4 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Arnica | Scots Pine | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 7/10 | 2/10 | Stronger for Arnica |
| Cancer (anticancer research) | 2/10 | 2/10 | Comparable evidence |
| Infection (general) | 1/10 | 2/10 | Comparable evidence |
| Inflammation (general) | 7/10 | 2/10 | Stronger for Arnica |
| Skin irritation | 7/10 | 2/10 | Stronger for Arnica |
| Swelling / fluid retention | 7/10 | 2/10 | Stronger for Arnica |
| Wounds | 1/10 | 2/10 | 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
The main anti-inflammatory principles; also responsible for the plant's toxicity and contact-allergy potential.
Aromatic and supporting constituents of the flower.
Present in small amounts; relevant to the caution against internal use.
The needle oil is dominated by monoterpene hydrocarbons, chiefly alpha-pinene, giving the characteristic resinous scent and much of its antimicrobial activity.
The resinous sap/pitch, traditionally used topically for wounds and skin complaints.
The needle is traditionally valued as a source of vitamin C, particularly in winter.
Pharmacological Actions
Topical anti-inflammatory for bruising, swelling and sprains
Helenalin, the sesquiterpene lactone of Arnica montana, shows anticancer activity against multiple tumour types in vitro and in vivo, largely by covalently inhibiting NF-kappaB p65 and inducing apoptosis (preclinical).
Traditional & Indicated Uses
inferred from anti-inflammatory action
Antiecchymotic / vulnerary (helps disperse bruises); Topical anti-inflammatory for bruising, swelling and sprains
Arnica montana and its constituent helenalin exert anticancer activity against several tumour types in vitro and in vivo, inhibiting NF-kappaB (p65) signalling, inducing apoptosis and synergizing with other anticancer agents (preclinical).
inferred from antimicrobial action
inferred from anti-inflammatory action
Topical analgesic for muscle soreness and pain
Topical analgesic for muscle soreness and pain
inferred from anti-inflammatory action
Topical anti-inflammatory for bruising, swelling and sprains
inferred from anti-inflammatory action
inferred from expectorant 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
Safety, Cautions & Contraindications
EXTERNAL USE ONLY on unbroken skin. Arnica is toxic if swallowed and can cause stomach pain, vomiting, diarrhoea, breathing difficulty, irregular heartbeat and, in serious cases, cardiac arrest; the only safe oral form is the highly diluted homeopathic preparation.
Do not apply to broken or damaged skin, open wounds, eyes or mucous membranes.
As a member of the daisy family (Asteraceae) it can cause allergic contact dermatitis; prolonged topical use can also irritate the skin.
Generally safe in normal amounts. Pine essential oil should not be ingested; topical use only in diluted form. May irritate airways in high concentrations. Allergic reactions to pine pollen and resin are common. Turpentine products are irritant and potentially toxic if ingested.
Duke (2002) rates Scotch pine as + and notes antiseptic, antibacterial (score 1), and bronchospasmolytic activities. Commission E (KOM) and PhEur (PIP) approve pine needle preparations for topical use in rheumatic and neuralgic conditions and for inhalations in upper respiratory catarrh. Duke cautions that pine needle oil should not be inhaled by patients with severe asthma, whooping cough, or laryngospasm. Pine bud preparations are traditionally used for bronchitis and sinus congestion. Dose: 100–200 mg essential oil in ointment or cream for topical use (Duke, 2002).
External Ids
Botanical Description
Aromatic mountain perennial herb with a basal rosette of oval, hairy leaves and one or two pairs of smaller opposite leaves on an erect, softly hairy flowering stem. Each stem bears one or a few large, bright golden-yellow, daisy-like flower heads with narrow, slightly twisted ray florets.[4]
Evergreen coniferous tree (Pinaceae), 15-35 m tall, with a long, straight trunk at maturity, distinctive orange-red flaking bark in the upper crown and grey-brown fissured bark at the base. Needles are blue-green, borne in pairs (fascicles of two) with a papery basal sheath. Small yellow male cones release pollen in spring; female cones are woody and mature over two years.[11]
Habitat
Grows in acidic, nutrient-poor mountain meadows, pastures and open woodland, typically at moderate to high elevations across central and northern Europe; increasingly scarce in the wild due to habitat loss and overharvesting.[4]
Native across northern and central Europe and Siberia - the most widely distributed pine species in the world - forming extensive boreal and montane forests on poor, sandy or peaty, acidic soils; a pioneer species tolerant of dry, nutrient-poor ground.[11]
Harvesting
The flower heads are picked by hand as they open, in mid- to late summer, and dried quickly in a warm, shaded, airy place; wild populations are protected in many regions, so cultivated or sustainably wildcrafted material is preferred.[4]
Young shoots ('candles') and needles are gathered in spring; bark is stripped from felled or cultivated trees; resin/sap is tapped from the trunk. Needle-bearing twigs can be cut for tea and for steam distillation of the essential oil year-round.[11]
Traditional Uses
Arnica flower has a long central European folk reputation, reflected in the name 'leopard's bane' and 'mountain tobacco', as a topical remedy for bruising, sprains, muscle soreness and swelling after minor injury, applied only to unbroken skin. Internal use of the whole herb has always been considered dangerous and is confined to highly diluted homeopathic preparations.[4]
Scots pine has a long northern European tradition as a source of resinous, aromatic preparations for respiratory complaints (coughs, bronchitis, catarrh) and topical rheumatic/muscular remedies, and pine-needle tea has traditionally been valued as a vitamin-C-rich winter tonic. Modern research on the needle essential oil supports antimicrobial, anti-inflammatory and expectorant activity.[11, 12]
Preparations
Standardised flower extract formulated into a cream, gel or ointment for external application to bruises, sprains and muscle soreness on unbroken skin.
Alcoholic tincture of the dried flower heads, diluted before topical application as a compress; never taken internally in this form.
Fresh or dried young needles steeped in hot water - the traditional vitamin-C-rich tonic tea. Only use needles from a certainly identified pine, never yew (see dangerous look-alikes).
Steam-distilled from the needles; used diluted in ointments, chest rubs or steam inhalation for respiratory complaints.
Dosage
The EU herbal monograph gives cutaneous use only, in adolescents, adults and elderly - a semi-solid preparation containing 20-25% tincture applied as a thin layer 2-3 times daily, a 50% liquid-extract preparation 2-4 times daily, or 2.5 mL of a liquid preparation as an impregnated dressing 3-4 times daily. Apply to unbroken skin only. If symptoms persist after 3 to 4 days a healthcare practitioner should be consulted. Not recommended under 12 years. Never taken by mouth except as a highly diluted homeopathic preparation. Educational reference only, not a prescription.
References
Lookalikes Review
Dangerous Lookalikes
Not documented
References & Sources
- Toma, C.C., Marrelli, M., Puticiu, M., Conforti, F. and Statti, G (2024) 'Effects of Arnica montana Phytotherapeutic and Homeopathic Formulations on Traumatic Injuries and Inflammatory Conditions: A Systematic Review', Plants (Basel), 13(21), pp. 3112. doi:10.3390/plants13213112 Meta-analysis / review
https://doi.org/10.3390/plants13213112 - Schmidt, T.J (2023) 'Arnica montana L.: Doesn't Origin Matter?', Plants (Basel), 12(20), pp. 3532. doi:10.3390/plants12203532 Traditional / reference
https://doi.org/10.3390/plants12203532 - 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 - Kriplani, P., Guarve, K. and Baghael, U.S (2017) 'Arnica montana L. - a plant of healing: review', Journal of Pharmacy and Pharmacology, pp. 12724. doi:10.1111/jphp.12724 Traditional / reference
https://doi.org/10.1111/jphp.12724 - Iannitti, T., Morales-Medina, J.C., Bellavite, P., Rottigni, V. and Palmieri, B (2016) 'Effectiveness and safety of Arnica montana in post-surgical setting, pain and inflammation', American Journal of Therapeutics, 23(1), pp. e184-e197. doi:10.1097/MJT.0000000000000036 Meta-analysis / review
https://doi.org/10.1097/MJT.0000000000000036 - Verre, J., Boisson, M., Paumier, A., Tribolo, S. and Boujedaini, N (2023) 'Anti-inflammatory effects of Arnica montana (mother tincture and homeopathic dilutions) in various cell models', Journal of Ethnopharmacology, 318(Pt B), pp. 117064. doi:10.1016/j.jep.2023.117064 Preclinical
https://doi.org/10.1016/j.jep.2023.117064 - Rohrl, J., Pique-Borras, M., Jaklin, M., Werner, M., Werz, O., Josef, H., Holz, H., Ammendola, A. and Kunstle, G (2023) 'Anti-inflammatory activities of Arnica montana planta tota versus flower extracts: analytical, in vitro and in vivo mouse paw oedema model studies', Plants, 12(6), pp. 1348. doi:10.3390/plants12061348 Preclinical
https://doi.org/10.3390/plants12061348 - da Silva Prade, J., Balsamo, E.C., Machado, F.R., Poetini, M.R., Bortolotto, V.C., Araujo, S.M., Londero, L., Boeira, S.P., Sehn, C.P., de Gomes, M.G., Prigol, M. and Cattelan Souza, L (2020) 'Anti-inflammatory effect of Arnica montana in a UVB radiation-induced skin-burn model in mice', Cutaneous and Ocular Toxicology, 39(2), pp. 126-133. doi:10.1080/15569527.2020.1743998 Preclinical
https://doi.org/10.1080/15569527.2020.1743998 - Zacarias, C.A., de Mendonca Florenziano, R.F., de Andrade, T.A.M., de Aro, A.A., do Amaral, M.E.C., Dos Santos, G.M.T. and Esquisatto, M.A.M (2023) 'Arnica montana L. associated with microcurrent accelerates the dermis reorganisation of skin lesions', International Journal of Experimental Pathology, 104(2), pp. 81-95. doi:10.1111/iep.12469 Preclinical
https://doi.org/10.1111/iep.12469 - Chaiet, S.R. and Marcus, B.C (2016) 'Perioperative Arnica montana for reduction of ecchymosis in rhinoplasty surgery', Annals of Plastic Surgery, 76(5), pp. 477-482. doi:10.1097/SAP.0000000000000312 Randomized trial
https://doi.org/10.1097/SAP.0000000000000312 - Zitek, T., Postruznik, V., Knez, Z., Golle, A., Daris, B. and Knez Marevci, M (2022) 'Arnica montana L. supercritical extraction optimization for antibiotic and anticancer activity', Frontiers in Bioengineering and Biotechnology, 10, pp. 897185. doi:10.3389/fbioe.2022.897185 Preclinical
https://doi.org/10.3389/fbioe.2022.897185 - Sutovska, M., Capek, P., Kocmalova, M., Pawlaczyk, I., Zaczynska, E., Czarny, A., Uhliarikova, I., Gancarz, R. and Franova, S (2014) 'Characterization and pharmacodynamic properties of Arnica montana complex', International Journal of Biological Macromolecules, 69, pp. 214-221. doi:10.1016/j.ijbiomac.2014.05.051 Preclinical
https://doi.org/10.1016/j.ijbiomac.2014.05.051 - Merfort, I. and Wendisch, D (1987) 'Flavonoid glycosides from Arnica montana and Arnica chamissonis', Planta Medica, 53(5), pp. 434-437. doi:10.1055/s-2006-962766 Preclinical
https://doi.org/10.1055/s-2006-962766 - European Medicines Agency (HMPC) (2012) 'Community herbal monograph on Arnica montana L., flos'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-arnica-montana-l-flos_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-arnica-montana-l-flos_en.pdf - Gaertner, K., Baumgartner, S. and Walach, H (2021) 'Is Homeopathic Arnica Effective for Postoperative Recovery? A Meta-analysis of Placebo-Controlled and Active Comparator Trials', Frontiers in Surgery. doi:10.3389/fsurg.2021.680930 Meta-analysis / review
https://doi.org/10.3389/fsurg.2021.680930 - Kriplani, P. and Guarve, K (2020) 'Recent Patents on Anti-Cancer Potential of Helenalin', Recent Patents on Anti-Cancer Drug Discovery, 15(2), pp. 132-142. doi:10.2174/1574892815666200702142601 Preclinical
https://doi.org/10.2174/1574892815666200702142601 - Drogosz, J. and Janecka, A (2019) 'Helenalin - A Sesquiterpene Lactone with Multidirectional Activity', Current Drug Targets, 20(4), pp. 444-452. doi:10.2174/1389450119666181012125230 Preclinical
https://doi.org/10.2174/1389450119666181012125230 - National Capital Poison Center (Poison Control) (n.d.) 'Caution when using Arnica products'. Available at: https://www.poison.org/articles/caution-when-using-arnica-products-193 Traditional / reference
https://www.poison.org/articles/caution-when-using-arnica-products-193
- Jurado, P., Uruen, C., Martinez, S., Lain, E. and others (2023) 'Essential oils of Pinus sylvestris, Citrus limon and Origanum vulgare exhibit high bactericidal and anti-biofilm activities against Neisseria gonorrhoeae and Streptococcus suis', Biomedicine & Pharmacotherapy, 168, pp. 115703. doi:10.1016/j.biopha.2023.115703 Preclinical
https://doi.org/10.1016/j.biopha.2023.115703 - Csikos, E., Cseko, K., Kemeny, A., Draskoczi, L. and others (2022) 'Pinus sylvestris L. and Syzygium aromaticum (L.) Merr. & L. M. Perry Essential Oils Inhibit Endotoxin-Induced Airway Hyperreactivity despite Aggravated Inflammatory Mechanisms in Mice', Molecules, 27(12), pp. 3868. doi:10.3390/molecules27123868 Preclinical
https://doi.org/10.3390/molecules27123868 - Allenspach, M., Valder, C., Flamm, D., Grisoni, F. and others (2020) 'Verification of Chromatographic Profile of Primary Essential Oil of Pinus sylvestris L. Combined with Chemometric Analysis', Molecules, 25(13), pp. 2973. doi:10.3390/molecules25132973 Preclinical
https://doi.org/10.3390/molecules25132973 - Allenspach, M., Valder, C., Flamm, D. and Steuer, C (2021) 'Authenticity control of Pinus sylvestris essential oil by chiral gas chromatographic analysis of alpha-pinene', Scientific Reports, 11(1), pp. 16923. doi:10.1038/s41598-021-96356-x Preclinical
https://doi.org/10.1038/s41598-021-96356-x - Rodrigues, A.M., Mendes, M.D., Lima, A.S., Barbosa, P.M. and others (2017) 'Pinus halepensis, Pinus pinaster, Pinus pinea and Pinus sylvestris Essential Oils Chemotypes and Monoterpene Hydrocarbon Enantiomers', Chemistry & Biodiversity, 14(1), pp. e1600153. doi:10.1002/cbdv.201600153 Preclinical
https://doi.org/10.1002/cbdv.201600153 - Judzentiene, A., Stikliene, A. and Kupcinskiene, E (2007) 'Changes in the essential oil composition in the needles of Scots pine (Pinus sylvestris L.) under anthropogenic stress', The Scientific World Journal, 7(Suppl 1), pp. 141-150. doi:10.1100/tsw.2007.36 Preclinical
https://doi.org/10.1100/tsw.2007.36 - Hoai, N.T., Duc, H.V., Thao, D.T., Orav, A. and others (2015) 'Selectivity of Pinus sylvestris extract and essential oil to estrogen-insensitive breast cancer cells', Pharmacognosy Magazine, 11(Suppl 2), pp. S290-S295. doi:10.4103/0973-1296.166052 Preclinical
https://doi.org/10.4103/0973-1296.166052 - Fayemiwo, K.A., Adeleke, M.A., Okoro, O.P., Awojide, S.H. and others (2014) 'Larvicidal efficacies and chemical composition of essential oils of Pinus sylvestris and Syzygium aromaticum against mosquitoes', Asian Pacific Journal of Tropical Biomedicine, 4(1), pp. 30-34. doi:10.1016/S2221-1691(14)60204-5 Preclinical
https://doi.org/10.1016/S2221-1691(14)60204-5 - Scalas, D., Mandras, N., Roana, J., Tardugno, R. and others (2018) 'Use of Pinus sylvestris L. (Pinaceae), Origanum vulgare L. (Lamiaceae), and Thymus vulgaris L. (Lamiaceae) essential oils and their main components to enhance itraconazole activity against azole susceptible/not-susceptible Cryptococcus neoformans strains', BMC Complementary and Alternative Medicine, 18(1), pp. 143. doi:10.1186/s12906-018-2219-4 Preclinical
https://doi.org/10.1186/s12906-018-2219-4 - Suntar, I., Tumen, I., Ustun, O., Keles, H. and others (2012) 'Appraisal on the wound healing and anti-inflammatory activities of the essential oils obtained from the cones and needles of Pinus species by in vivo and in vitro experimental models', Journal of Ethnopharmacology, 139(2), pp. 533-540. doi:10.1016/j.jep.2011.11.045 Preclinical
https://doi.org/10.1016/j.jep.2011.11.045 - Grieve, M (1931) 'A Modern Herbal'. Traditional / reference
https://scholar.google.com/scholar?q=A%20Modern%20Herbal - Bakkali, F. et al (2008) 'Biological effects of essential oils — a review', 46(2), pp. 446--475. doi:10.1016/j.fct.2007.09.106 Preclinical
https://doi.org/10.1016/j.fct.2007.09.106 - Sousa, A. et al (2010) 'Proanthocyanidins from Pinus pinaster bark', 71(1), pp. 64--72. Traditional / reference
https://scholar.google.com/scholar?q=Proanthocyanidins%20from%20Pinus%20pinaster%20bark - 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 - Missouri Poison Center 'Pine Needles'. Available at: https://missouripoisoncenter.org/is-this-a-poison/pine-needles/ Traditional / reference
https://missouripoisoncenter.org/is-this-a-poison/pine-needles/ - Arens, A.M. and Anaebere, T.C. and Horng, H. and Olson, K (2016) 'Fatal Taxus baccata ingestion with perimortem serum taxine B quantification', Clinical Toxicology (Philadelphia, Pa.), 54(9), pp. 878-880. doi:10.1080/15563650.2016.1209765 Clinical study
https://doi.org/10.1080/15563650.2016.1209765 - Froldi, R. and Croci, P.F. and Dell'Acqua, L. and Fare, F. and Tassoni, G. and Gambaro, V (2010) 'Preliminary gas chromatography with mass spectrometry determination of 3,5-dimethoxyphenol in biological specimens as evidence of taxus poisoning', Journal of Analytical Toxicology, 34(1), pp. 53-6. doi:10.1093/jat/34.1.53 Clinical study
https://doi.org/10.1093/jat/34.1.53
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.