Perennials, 20–50 cm; rhizomes 2–15 cm. Stems erect, sometimes reddish brown, branched distally, slender, striate, glabrous or sparsely piloso-sericeous. Leaves: basal blades sessile, linear, shorter than cauline, 10–40 × 2–4 mm, margins sparsely pilose, apices acute, mucronate, faces sparsely piloso-sericeous; cauline 20–50, crowded, spreading to ascending, light green, proximal linear-filiform, 30–70 × 0.8–1.5 mm, margins sparsely pilose, apices acuminate, glabrate; distal 15–60 mm. Heads 1–10, in corymbiform arrays. Peduncles sparsely bracteolate, 1–4 cm, sparsely piloso-sericeous. Involucres turbino-campanulate, 5.5–8 mm (usually shorter than pappi). Phyllaries in 5–6 series, scarious, apices ciliate, faces glabrate. Ray florets 9–13; laminae 5–7 mm. Disc florets 15–35; corollas 4.8–6.5 mm, lobes 0.5 mm, glabrate. Cypselae fusiform, 4 mm, ribbed, faces sparsely strigose; pappi: outer of linear to narrowly triangular scales 0.6–0.9 mm, inner of 25–30 bristles 4.5–6 mm. 2n = 18.
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