Arnica angustifolia

Arnica angustifolia is an Arctic and alpine species of plants in the sunflower family, known by the common names narrowleaf arnica and Arctic arnica. It is native to colder regions in Europe, Asia, and North America (northern and western Canada, Alaska, northern Rocky Mountains). It is a perennial herb growing up to 16 inches (41 centimetres) tall. Its native habitats include bare, rocky slopes and alpine summits. Subspecies Arnica angustifolia subsp. alpina (L.) I.K.Ferguson - Norway, Sweden Arnica angustifolia subsp. angustifolia - Eurasia, North America Arnica angustifolia subsp. attenuata (Greene) G.W.Douglas & Ruyle-Dougl. - Alaska, Yukon, Northwest Territories, Nunavut, Ungava Arnica angustifolia subsp. iljinii (Maguire) I.K.Ferguson - Russia Arnica angustifolia subsp. lonchophylla (Greene) G.W.Douglas & Ruyle-Dougl. - British Columbia Arnica angustifolia subsp. sornborgeri (Fernald) - Quebec, Labrador, Newfoundland Arnica angustifolia subsp. tomentosa (J.M.Macoun) G.W.Douglas &......read more on Wikipedia.