Photo: Arnica chamissonis 2.

Flowering plant. Uppsala bot.g., Sweden. Planted. 2003-06-21.
Arnica chamissonis Less. Engl.: American arnica, chamisso arnica, North American arnica. Deu.: Wiesen-Arnika. Sven.: vägarnika. Bot. syn.: Arnica foliosa Nutt.
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Photo: Arnica chamissonis 2.