Parry's Arnica, Nodding Arnica
Synonyms: Arnica angustifolia, Arnica angustifolia ssp. eradiata, Arnica parryi ssp. parryi, Arnica parryi ssp. sonnei, Arnica parryi var. parryi, Arnica parryi var. sonnei
A close-up of the flower head of nodding arnica as seen along Forest Road #39 near Bottle Springs, Okanogan-Wenatchee National Forest......July 29, 2018.
Parry's arnica beginning to bloom along the Island Springs Trail #66 just uphill from where the trail reaches the crest of the Ridge of Wonders, Mt. Adams............August 13, 2012.