Perennials, 20–50 cm (rhizomes slender). Stems single. branches on distal 1/3–1/2, glabrous or sparsely puberulent. Leaves green at flowering (at least on plants of spring and early summer, frequently absent in plants of late summer); basal blades oblanceolate to spatulate, runcinate, 4–7 cm, margins pinnately lobed (faces glabrous or sparsely puberulent). cauline reduced, scalelike on plants of spring and early summer, linear and threadlike (to 3 cm) on plants of late summer. Heads borne singly on branch tips. Peduncles mostly 5–100+ mm (bracteolate). Calyculi of (4–6) appressed bractlets (unequal, lengths to 1/2 phyllaries). Involucres 9–11(–12) mm (phyllaries 6–8, glabrous). Florets 10–16(–20). Cypselae tan, 5–6 mm, faces smooth, grooved; pappi of 30–40, white bristles (persistent), wholly plumose. 2n = 16.
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