Herbs, perennial. Rhizome short and stout, branched, densely covered with black-brown relicts of leaves. Stems 5-30 cm tall, erect, 1-3 mm in diam., usually not branched, white sericeous, with leaves densely arranged; leaves much denser in sterile young stems. Leaves linear to subulate-linear, 8-30 × 0.8-1.4 mm, abaxially densely white tomentose, adaxially green and sparsely arachnoid or subglabrous, margin reflexed, apex acute or obtuse. Capitula 10-40, 3-4 mm in diam., in dense corymbs; bracteal leaves numerous, equal to or longer than cauline leaves, oblong-lanceolate to lanceolate, both surfaces densely covered with white to yellowish tomentum, apex acute. Involucre 3-4 mm, abaxially densely tomentose; phyllaries 3-seriate, abaxially yellowish tomentose. Marginal florets female; corolla capillary. Disk florets male; corolla subtubular, 2.5-3 mm. Achenes papillose. Pappus of capillary bristles, white. Fl. Aug-Sep, fr. Sep-Oct.
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