Perennials, 10–30 cm; rhizomatous, fibrous-rooted, caudices with rhizomelike, relatively slender, lignescent, basal offsets 1–7 cm. Stems ascending (branched at or below midstems), pilose on proximal 1 / 3 (hairs spreading-deflexed), loosely strigose distally, eglandular. Leaves basal (usually persistent) and cauline; basal blades lanceolate to oblanceolate or narrowly obovate, 10–30 × 3–10 mm, cauline little reduced distally, margins entire or with 1–2 pairs of teeth, loosely strigose (hairs ascending), eglandular. Heads 1(–2) (branches from or proximal to midstem). Involucres 4–5 × 7–10 mm. Phyllaries in 2–3 series, sparsely hirsute, sparsely minutely glandular. Ray florets 60–95; corollas white, with lilac abaxial midstripe, 7–10 mm, laminae not coiling or reflexing. Disc corollas 1.8–2.2 mm (throats slightly indurate or inflated). Cypselae 0.6–0.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of scales, inner of 8–11 bristles.
Home