Shrubs, 30–80+ cm. Stems erect. Leaves mostly alternate; petioles 5–20 mm; blades ovate to rounded-deltate, 20–35(–50) × 18–30(–45) mm, bases broadly cuneate to ± truncate, margins toothed, abaxial faces ± densely tomentulose (between veins), adaxial faces sparsely tomentulose, glabrescent. Pistillate heads clustered, proximal to staminates; florets 2(–3). Staminate heads: peduncles 0–3 mm; involucres ± cup-shaped, 3–5 mm diam., tomentulose; florets 12–20+. Burs: bodies obconic to fusiform, 4–6 mm, tomentulose (little, if at all, stipitate-glandular), spines 15–20+, scattered or on distal 1/2, ± subulate (the proximal basally flattened), 2–3 mm, tips usually uncinate, sometimes straight. 2n = 72.
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