[Members of the Genus Arnica with Discoid Flower Heads in the Columbia River Gorge of Oregon and Washington]

Parry's Arnica, Nodding Arnica

Arnica parryi

Synonyms: Arnica angustifolia, Arnica angustifolia ssp. eradiata, Arnica parryi ssp. parryi, Arnica parryi ssp. sonnei, Arnica parryi var. parryi, Arnica parryi var. sonnei

Flower head of Parry's Arnica, Nodding Arnica: Arnica parryi (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, Nodding Arnica: Arnica parryi (Synonyms: Arnica angustifolia, Arnica angustifolia ssp. eradiata, Arnica parryi ssp. parryi, Arnica parryi ssp. sonnei, Arnica parryi var. parryi, Arnica parryi var. sonnei)

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.
Paul Slichter