Plants 60–105 cm. Corms mostly globose. Stems glabrous. Leaves: basal and proximal cauline 1-nerved, linear-oblanceolate to narrowly oblanceolate, 80–210 × 2–5(–10) mm, gradually or abruptly reduced distally, essentially glabrous (sparsely piloso-ciliate along proximal margins), gland-dotted. Heads in loose, racemiform arrays (internodes 2–14 mm). Peduncles 0 or (ascending) 2(–7) mm. Involucres turbinate, 6–8 × 5–7 mm. Phyllaries in 3–4(–5) series, mostly oblong, unequal, essentially glabrous, margins with hyaline borders (0.2–0.4 mm wide), sometimes sparsely ciliolate, apices rounded. Florets (7–)8–11(–13); corolla tubes pilose inside. Cypselae 2.8–3.5(–3.8) mm; pappi: lengths ± equaling corollas, bristles barbellate. 2n = 20.
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