[Arnicas and Leopardbanes: The Genus Arnica West of the Cascade Mountains of Oregon and Washington]

Rayless Arnica, Rayless Leopardbane

Arnica discoidea

Synonyms: Arnica discoidea var. eradiata, Arnica grayi, Arnica parviflora, Arnica parviflora ssp. alata, Arnica parviflora ssp. parviflora

Rayless Arnica, Rayless Leopardbane: Arnica discoidea (Synonyms: Arnica discoidea var. eradiata, Arnica grayi, Arnica parviflora, Arnica parviflora ssp. alata, Arnica parviflora ssp. parviflora) - Discoid flower head of Rayless Arnica, Rayless Leopardbane: Arnica discoidea (Synonyms: Arnica discoidea var. eradiata, Arnica grayi, Arnica parviflora, Arnica parviflora ssp. alata, Arnica parviflora ssp. parviflora) - Rayless Arnica, Rayless Leopardbane: Arnica discoidea (Synonyms: Arnica discoidea var. eradiata, Arnica grayi, Arnica parviflora, Arnica parviflora ssp. alata, Arnica parviflora ssp. parviflora)

Rayless arnica blooming along BLM Rd. 33-5-21 on the way to the King Mountain Rock Garden ACEC in northeastern Josephine County, OR.........June 11, 2017.
Paul Slichter