Herbs perennial, 10-30(-40) cm tall, cespitose. Caudex slender, few branched, ultimate branches terminated in rosettes, covered with petiolar remains of previous years. Stems erect, simple, tomentose with subsessile stellate trichomes. Basal leaves rosulate, persistent; petiole to 1.5 cm, often undifferentiated; leaf blade elliptic, oblong, or lanceolate, (0.4-)1-2(-3) cm × (1-)2-6 mm, tomentose with sessile or short-stalked, 4-rayed stellate trichomes 1 or 2 rays of which often branched, base attenuate to cuneate, margin entire or denticulate, apex acute. Cauline leaves 6-12(-16), sessile; leaf blade ovate, oblong, elliptic, or lanceolate, 0.7-2.6(-3.5) cm × 2-7(-10) mm, pubescent as basal leaves, often adaxially pilose with predominantly simple trichomes, base cuneate to obtuse, margin 2-5(-9)-toothed on each side, rarely entire, apex acute. Racemes (7-)14-32(-47)-flowered, ebracteate or lowermost flowers bracteate, elongated in fruit. Fruiting pedicels 2-4.5(-7) mm, erect or ascending, often appressed to rachis, straight, tomentose all around with subsessile, stellate trichomes sometimes mixed with simple ones. Sepals oblong or ovate, 1-2 × 0.5-0.8 mm, erect, abaxially pilose, base of lateral pair not saccate, margin membranous. Petals white, spatulate, 2.5-3.5 × 1-2 mm, apex subemarginate or rounded; claw absent or to 1 mm. Filaments 1.5-2 mm; anthers ovate, 0.2-0.3 mm. Ovules (26-)30-48(-56) per ovary. Fruit lanceolate to lanceolate-linear, (6-)7-11(-12) × 1.5-2 mm, erect and often appressed to rachis, latiseptate, rarely slightly twisted; valves tomentose or very rarely glabrous, obscurely veined, apex acute; style 0.1-0.6 mm. Seeds brown, ovate, 0.8-1.1 × 0.5-0.6 mm. Fl. and fr. Jun-Aug. 2n = 32.
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