Shrubs, 40–130(–210) cm (branched near bases). Stems erect to arching, striate-angled, glabrous or sparsely villous distally (hairs short, spreading). Leaves present at flowering (sparse); short-petiolate; blades (1-or 3-nerved) linear to linear-oblanceolate, (15–)20–45(–65) × 1–4(–5) mm, bases narrowly attenuate, margins entire or weakly serrate, apices acute or acuminate (crustose); faces glabrous or sometimes sparsely pilose (hairs 2-seriate), adaxial gland-dotted (in pits; distal leaves reduced, crowded). Heads in cylindric paniculiform arrays. Involucres turbinate; staminate ca. 5 mm, pistillate ca. 5 mm. Phyllaries linear-lanceolate, 2–5 mm, margins yellowish white, scarious, medians green, apices becoming brown with age, ciliate distally. Staminate florets 23–36; corollas 3.7–4.5 mm. Pistillate florets 35–38; corollas 2.2–4.2 mm. Cypselae 2.4–3 mm, 5-nerved, faces with thick, irregular, glandlike hairs; pappi 6.5–7.5 mm.
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