Wayside Aster
Doellingeria vialisÌý(Bradshaw) Semple, Brouillet and G.A. Allen is a rare rayless aster that occurs inÌýopen oak or coniferous woodsÌýin Douglas, Jackson, Josephine, Lane, and Linn Counties in Oregon and Del Norte and Humboldt Counties in California (; Allen at al. 2019). The species has been treated asÌýEucephalus vialisÌýBradshaw andÌýAster vialisÌý(Bradshaw) Blake.Ìý The species is diploid 2n=18.Ìý The species is of conservation concern.
1-4. Doellingeria vialis; Ingram 34974 RM, Siskiyou Forest, Josephine Co., Oregon. 1. Dried shoot. 2. Upper mid stem leaf.Ìý 3. Heads. 4. Disc floret fruit.Ìý
Interagency Conservation Agreement forÌýEucephalus vialisÌý(wayside aster). 2006.
Allen, G.A., L. Brouillet, J.C. Semple, H.J. Guest, and R. Underhill. 2019. Diversification of the North AmericanÌýDoellingeria-EucephalusClade (Astereae: Asteraceae) as inferred from molecular and morphological evidence.Ìý Syst. Bot. 44(4): 930-942.
Revised 28 March 2025 by J.C. Semple
© 2025 J.C. Semple, including all photographs unless otherwise indicated