Columbiadoria is a small North American genus of flowering plants in the family Asteraceae.Nesom, Guy L. 1991. Redefinition of Hesperodoria (Asteraceae: Astereae) and the segregation of Columbiadoria, a new monotypic genus from the western United States. Phytologia 71(3): 244–251Tropicos, Columbiadoria G.L. Nesom
The only known species is Columbiadoria hallii, native to the northwestern United States (States of Washington and Oregon). The species is a subshrub up to 60 cm (2 feet) tall. One plant produces numerous yellow flower heads with both ray florets and disc florets.Biota of North America Program 2013 county distribution mapTurner Photographics Paul Slichter, Columbia River Daisy, Hall's Columbiadoria, Hall's Goldenweed, Columbiadoria hallii
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