Eucephalus vialis Bradshaw

Eucephalus vialis is only known from Lane and Douglas counties. It is considered threatened. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Perennials, 60–120 cm (caudices stout). Stems erect, pilose to glandular-pubescent. Leaves: middle and distal cauline blades lanceolate-elliptic, 5–9 cm × 15–30 mm, abaxial faces usually glabrous, sometimes sparsely pubescent, adaxial faces glandular-pubescent. Heads 5–50(–120) in racemiform to paniculiform arrays. Peduncles stipitate-glandular. Involucres turbinate, 8–10 mm. Phyllaries in 3–6 series (sometimes reddish at margins and apices), linear to linear-oblong (strongly unequal), apices acute to acuminate, abaxial faces stipitate-glandular. Ray florets 0. Cypselae pilose; pappus bristles in 2 series, smooth or ± barbellate.

Aster vialis (Bradshaw) S. F. Blake