Shrubs, 100–450 cm (not broom-like). Stems (sometimes in clumps) erect, striate-angled, glabrous, eglandular. Leaves present at flowering; sessile; blades (1-nerved, lateral veins obscure) narrowly elliptic to linear, 30–80 × 1–2(–5) mm (moderately thick), bases narrowly attenuate, margins entire or serrate with 2–3 small teeth, apices acute, faces glabrous, gland-dotted (distal reduced, entire). Heads (axillary and terminal on lateral branches) in pyramidal, paniculiform arrays. Involucres cylindro-campanulate; staminate 3.5–4 mm, pistillate 4–5 mm. Phyllaries ovate to lanceolate, 1–3 mm, margins yellowish, often scarious, medians green or reddish, apices acute to acuminate (often purplish, sometimes erose). Staminate florets 10–15; corollas 2.7–3.3 mm. Pistillate florets 15–30; corollas 2.5–3.3 mm. Cypselae 1–1.5 mm, 10-nerved, glabrous; pappi 7–12 mm.