Annuals or short-lived perennials, (7–)12–40(–70) cm; taprooted, caudices simple if perennial. Stems (single or multiple from bases) erect to ascending, densely and evenly puberulous-hirsutulous (hairs spreading to spreading-descending or-ascending, often crinkly, bases not thickened), minutely glandular at least distally, usually throughout. Leaves basal (usually deciduous) and cauline; basal blades obovate-spatulate, 10–70 × 4–-14 mm, cauline gradually reduced distally, margins entire or with 2–3 pairs of teeth or lobes, faces hirsute to loosely strigoso-hirsute, sometimes sparsely glandular. Heads (in early season, 1–)5–100+ (buds nodding). Involucres 3–4 × (5–)7–11 mm. Phyllaries in 3–4 series, hirsute, minutely glandular. Ray florets 75–150; corollas white, drying lilac, without abaxial midstripe, (2–)4–9.5 mm, laminae not coiling or reflexing (remaining relatively straight). Disc corollas 1.8–2.3 mm (throats indurate and slightly inflated). Cypselae 0.9–1.2 mm, 2-nerved (nerves whitish), faces sparsely strigose; pappi: outer of setae or scales, inner of 6–9(–12) bristles. 2n = 18, 27, 36.
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