Erect or procumbent annual herb 0.2–0.6 (–1.0) m tall; stems slender, covered with appressed hairs. Leaves sessile, stiff, broadly linear to linear-lanceolate, lanceolate or narrowly ovate, rarely trilobed, 20–35 (–70) mm long, 5–10 mm wide, entire or minutely and irregularly toothed, acute, sparsely scabrous to densely hirsute. Capitula several in loose dichasia, on elongated peduncles; involucre campanulate, 4 mm long, 5 mm wide. Disc florets 10–25. Achenes oblong to obovate, 3.0–4.5 mm long, 3.0–3.5 mm wide, dark grey to black or brown, abaxially convex and partly covered with minute white hairs, adaxially concave, often with central papillae, shortly pilose; wings thickened and revolute, sometimes with apex membranous and spreading. Pappus a shallow cup with 2 short, weak, scale-like awns.
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