Arnica is a genus of plants of the natural order Compositae, consisting of some twelve species, one of which is found in Central Europe, Arnica montana (leopard's bane or mountain tobacco), but is not a native of Britain. It has a perennialroot, a stem about 60 cm high, bearing on the summit flowers of a bright-yellow colour. In every part of the plant there is an acrid resin and a volatile oil, and in the flowers an acrid bitter principle called arnicin. The root contains also a considerable quantity of tannin. A tincture of it is employed as an external application to wounds and bruises. Research Arnica
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Abbreviations
Nature
Research Arnica
