Prostrate herb to 0.8 m diam. Stems rudimentary. Leaves grey on both sides, densely arachnoid-tomentose; sessile glands absent; marginal spines 2–8 mm long, yellow to yellow-brown. Capitula in sessile clusters of 1–7 surrounded by leaf rosette; involucre globose, 28–40 mm diam. at anthesis excluding patent outer bracts; median involucral bracts erect, deltate, 18–25 mm long, 3–4 mm wide at base, entire, rigidly spinose at apex, glabrous. Corolla white; tube 16–20 mm long; lobes 2.7–3.5 mm long, glabrous. Anthers 6–6.5 mm long. Achenes obovoid, obscurely to obviously 4-angled, 4–4.5 mm long, brown, with faint longitudinal ribs, and numerous transverse wrinkles. Pappus bristles barbellate, 135–164, 20–25 mm long.
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