Herbs perennial, (1-)2-7(-12) cm tall, densely or laxly cespitose, scapose. Caudex slender, often many branched, ultimate branches terminated in rosettes, covered with stramineous petiolar remains of previous years. Stems erect, simple, tomentose with subsessile stellate trichomes. Basal leaves rosulate; petiole absent, rarely to 6 mm, rarely ciliate; leaf blade obovate, oblong, spatulate, or lanceolate, 2-10 × 0.5-2 mm, densely tomentose with sessile or subsessile, very fine, 4-rayed stellate trichomes the rays of which with 1 or 2 lateral branches on each side, base attenuate to cuneate, margin entire, not ciliate, apex obtuse. Cauline leaves absent. Racemes 5-12-flowered, ebracteate, lax and elongated in fruit; rachis often flexuous, slender. Fruiting pedicels (3-)5-12(-15) mm, divaricate or rarely ascending, straight, tomentose all around with subsessile, stellate trichomes. Sepals oblong, 2-3 × 1-1.5 mm, erect, abaxially sparsely tomentose, base of lateral pair not saccate, margin narrowly membranous. Petals white, spatulate, 4-5 × 1.5-2.5 mm, apex subemarginate or rounded. Filaments 2-3 mm; anthers ovate, 0.4-0.5 mm. Ovules (10-)12-20 per ovary. Fruit narrowly elliptic, lanceolate, or oblong, (3-)5-9 × 1.5-2.3(-2.8) mm, not inflated, latiseptate, often twisted; valves glabrous or rarely puberulent, obscurely veined, base obtuse, apex acute; style (0.5-)0.7-1.3(-1.5) mm. Seeds brown, ovate, 0.9-1 × 0.7-0.8 mm. Fl. Jun-Aug, fr. Jul-Sep.
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