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