Arnica

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Arnica L. is a genus with about 30 species, belonging to the sunflower family (Asteraceae).

It occurs mostly in the temperate regions of North America, while two are native to Eurasia.

Species

• Arnica acaulis (Walt.) B.S.P. -- Common Leopardbane
• Arnica alpina (L.) Olin -- Alpine Arnica
• Arnica amplexicaulis Nutt. -- Clasping Arnica, Streambank Arnica
• Arnica angustifolia Vahl -- Narrowleaf Arnica
• Arnica cernua T.J. Howell -- Serpentine Arnica
• Arnica chamissonis Less. -- Chamisso Arnica
• Arnica cordifolia Hook. -- Heart-leaf Leopardbane, Heartleaf Arnica
• Arnica dealbata
• Arnica discoidea Benth. -- Rayless Arnica
• Arnica X diversifolia Greene (pro sp.) -- Curtis Churchmouse Threeawn, Rayless Arnica, Sticky Arnica
• Arnica frigida C.A. Mey. ex Iljin -- Snow Arnica
• Arnica fulgens Pursh -- Foothill Arnica, Orange Arnica, Shining Leopardbane
• Arnica x gracilis Rydb. -- Smallhead Arnica (a natural hybrid between A. latifolia and A. cordifolia)
• Arnica lanceolata Nutt. -- Arnica, Lanceleaf Arnica
• Arnica latifolia Bong. -- Broadleaf Arnica
• Arnica lessingii (Torr. & Gray) Greene -- Nodding Arnica
• Arnica lonchophylla Greene -- Longleaf Arnica
• Arnica longifolia D.C. Eat. -- Longleaf Arnica, Spearleaf Arnica
• Arnica louiseana Farr -- Lake Louise Arnica
• Arnica mollis Hook. -- hairy arnica, wooly arnica
• Arnica montana L. -- Mountain Arnica
• Arnica nevadensis Gray -- Nevada Arnica
• Arnica parryi Gray -- Nodding Arnica, Parry's Arnica
• Arnica rydbergii Greene -- Rydberg Arnica, Rydberg's Arnica, Subalpine Arnica
• Arnica sororia Greene -- Twin Arnica
• Arnica spathulata Greene -- Klamath Arnica
• Arnica unalaschcensis Less. -- Alaska Arnica
• Arnica venosa Hall -- Shasta County Arnica
• Arnica viscosa Gray -- Mt. Shasta Arnica

Reference

• Wolf, S.J. & K.E. Denford. 1984. Taxonomy of Arnica (Compositae) subgenus Austromontana. Rhodora Journal of the New England Botanical Club 86(847): 239 - 309.

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  Mountain Arnica (Arnica montana)
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  Mountain Arnica (Arnica montana)
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  Longleaf Arnica (Arnica longifolia)