Perennials or subshrubs, 10–100 cm (sometimes flowering first year). Stems erect to decumbent (usually woolly). Leaves (proximal usually alternate): blades mostly lanceolate to oblanceolate, 1–8 cm, often 1–2(–3)-pinnately lobed, ultimate margins toothed, serrate, or entire, revolute or plane, faces hairy, often woolly (more densely abaxially, sometimes glabrate adaxially; distal leaves reduced in size and lobing). Heads borne singly or (2–5+) in corymbiform arrays. Peduncles mostly 3–30 cm. Involucres campanulate to hemispheric, 6–15 mm diam. Phyllaries 5–13(–15), distinct or connate at bases (lanceolate to ovate, carinate or plane). Ray florets 0 or 5–13(–15); laminae golden yellow to yellow, 6–20 (× 2–7) mm. Disc florets 20–300; corollas 2.5–5 mm (tubes usually glandular or glandular-hairy, glabrous in var. hallii). Cypselae 2–5 mm; pappi usually of 6–12 ovate or cuneate to lanceolate or lance-linear (often unequal), erose or lacerate scales 0.3–2 mm, sometimes coroniform, rarely 0.
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