Botanical Name: Arnica montana
Species: A. montana
Synonyms: Mountain Tobacco. Leopard’s Bane.
Parts Used: Root, flowers.
Habitat:Arnica montana is widespread across most of Europe. It is absent from the British Isles and the Italian and Balkan Peninsulas. Arnica montana grows in nutrient-poor siliceous meadows up to nearly 3,000 metres (9,800 ft). It is rare overall, but may be locally abundant. It is becoming rarer, particularly in the north of its distribution, largely due to increasingly intensive agriculture. In more upland regions, it may also be found on nutrient-poor moors and heaths.
Description: Arnica montana has tall stems, 20–60 cm (7.9–23.6 in) high, supporting usually a single flower head. Most of the leaves are in a basal rosette, but one or two pairs may be found on the stem and are, unusually for composites, opposite. The flower heads are yellow, approximately 5 cm (2.0 in) in diameter, and appear from May to August.
Botanical Description : Arnica is a genus with about 30 perennial, herbaceous species, belonging to the sunflower family (Asteraceae). The genus name Arnica may be derived from the Latin arna, “lamb”, in reference to the soft, hairy leaves.
This circumboreal and montane genus occurs mostly in the temperate regions of western North America, while two are native to Eurasia (A. angustifolia and A. montana).
Arnica used to be included in the tribe Senecioneae, because it has a pappus of fine bristles. This was soon questioned and Nordenstam (1977) placed it tentatively in tribe Heliantheae s.l. This arrangement also became uncertain because of the sesquiterpene lactone chemistry in certain species. Lately Arnica was placed in an unresolved clade together with Madiinae, Eupatorieae, Heliantheae s.s. and Pectidinae.
Several species, such as Arnica montana and Arnica chamissonis contain helenalin, a sesquiterpene lactone that is a major ingredient in anti-inflammatory preparations (mostly against bruises).
Arnica species are used as food plants by the larvae of some Lepidoptera species including Bucculatrix arnicella.
Cultivation: Arnica thrives in a mixture of loam, peat, and sand. It may be propagated by root division or from seed. Divide in spring. Sow in early spring in a cold frame, and plant out in May.
The flowers are collected entire and dried, but the receptacles are sometimes removed as they are liable to be attacked by insects.
The root is collected in autumn after the leaves have died down.
Constituents: A bitter yellow crystalline principle, Arnicin, and a volatile oil. Tannin and phulin are also present. The flowers are said to contain more Arnicin than the rhizome, but no tannin.
Medicinal Action and Uses:
Arnica promotes the healing of wounds contracted through blows, punctures, falls and cuts. It is anti-inflammatory and antiseptic, relieves pain from injuries and promotes tissue regeneration. One can clean wounds, abscesses, boils and ulcers with diluted Arnica tinctures and dress them with a compress soaked in the same solution. For contusions, sprains, bruises, bursitis, arthritis and inflammation of the lymphatic vessels, apply packs of diluted Arnica tincture. To relieve headaches and visual disturbances due to concussion, apply such compresses around the head and neck. To prepare packs and washes, dilute one tablespoon of Arnica tincture in a cup of boiled water (or where sensitivity is suspected, double the water). The tincture made from the flowers is only used externally, whereas the tincture made from the roots is used internally for cases of hematoma and inflammation of the veins. Arnica also improves the circulation. Arnica flowers are sometimes adulterated with other composite flowers, especially Calendula officinalis, Inula brittanica, Kragapogon pratensis, and Scorzonera humilis. For tender feet a foot-bath of hot water containing 1/2 oz. of the tincture has brought great relief. Arnica has been shown to be an immuno-stimulant, as both the sesquiterpene lactone helenalin and the polysaccharide fraction stimulate phagocytosis. Sesquiterpene lactones are known to have anti-inflammatory activity and their biological effects appear to be mediated through immunological processes. As helenalin is one of the most active, this might help account for the use of Arnica for pain and inflammation.
Arnica has been used for heart problems (as it contains a cardiotonic substance), to improve circulation, to reduce cholesterol and to stimulate the central nervous system. But the internal use should only be done under supervision. It displays astonishing stimulating, decongesting and relaxing properties. The heart is both stimulated in deficient conditions and relieved in excess ones, depending on the case presented.
For sprains and strains, arnica promotes healing and has an antibacterial action; causes reabsorption of internal bleeding in bruises and sprains. Apply as a cream to the affected area, or soak a pad in diluted tincture and use as a compress. Take homeopathic Arnica 6x every 1-2 hours. Do not use on broken skin; use only homeopathic Arnica internally.
Clearing heat in the sense of both deficiency heat and fire toxin is one of its strengths. In Yin deficiency syndromes with either low fever or hot flushes, it matches up well with the likes of hawthorn, rehmannia, mistletoe and valerian.
Arnica montana is sometimes grown in herb gardens and historically has been used as medicine. It has been used in herbal medicine for centuries. A systematic review of homeopathic A. montana concluded that there are no rigorous clinical trials that support the claim that it is efficacious beyond a placebo effect.
The roots contain derivatives of thymol, which are used as fungicides and preservatives and may have some anti-inflammatory effect. When used topically in a gel at 50% concentration, A. montana was found to have the same effect when compared to a 5% ibuprofen gel for treating the symptoms of hand osteoarthritis.
A scientific study by FDA funded dermatologists found that the application of topical A. montana had no better effect than a placebo in the treatment of laser-induced bruising
Used externally this herb reduces inflammation and pain of bruises, aches, and sprains. While usage it must be kept in mind that internal application of this herb has a toxic effect on the heart and causes very high blood pressure.
In countries where Arnica is indigenous, it has long been a popular remedy. In the North American colonies the flowers are used in preference to the rhizome. They have a discutient property. The tincture is used for external application to sprains, bruises, and wounds, and as a paint for chilblains when the skin is unbroken. Repeated applications may produce severe inflammation. It is seldom used internally, because of its irritant effect on the stomach. Its action is stimulant and diuretic, and it is chiefly used in low fevers and paralytie affections.
Arnica flowers are sometimes adulterated with other composite flowers, especially Calendula officinalis, Inula brittanica, Kragapogon pratensis, and Scorzonera humilis.
A homoeopathic tincture, X6, has been used successfully in the treatment of epilepsy; also for seasickness, 3 X before sailing, and every hour on board till comfortable.
In homeopathic arnica in form of tincture or globules is very commonly used to releave the pain of any kind of wound.
For tender feet a foot-bath of hot water containing 1/2 oz. of the tineture has brought great relief. Applied to the scalp it will make the hair grow.
Known Hazards: Arnica montana contains the toxin helenalin, which can be poisonous if large amounts of the plant are eaten. It produces severe gastroenteritis and internal bleeding of the digestive tract if enough material is ingested. Contact with the plant may also cause skin irritation.
Great care must be exercised though, as some people are particularly sensitive to the plant and many severe cases of poisoning have resulted from its use, especially if taken internally.
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.
en.wikipedia.org and botanical.com