Summary[
edit] Description: Rydberg's arnica, subalpine arnica (Arnica rydbergii), Aster family (Asteraceae). West slope of the ridge between Hayden Peak and Mt. Agassiz, High Uinta, Utah; elevation 3434 m (11,256 ft). Date: 11 July 2015, 10:56. Source:
2015.07.11_10.56.55_IMG_2997. Author:
Andrey Zharkikh from Salt Lake City, USA.