Perennials; (cespitose); caudex branched (with persistent leaf remains); not scapose. Stems unbranched, 0.1-0.35 dm, pilose throughout, trichomes simple, (slightly crisped), 0.4-0.9 mm. Basal leaves rosulate; petiolate; petiole base and margin ciliate, (trichomes usually simple, rarely some 2-rayed, 0.2-0.7 mm); blade oblanceolate to linear-oblanceolate, 0.6-1.5 cm × 0.5-2 mm, margins entire or sparsely dentate, surfaces pubescent, abaxially with simple trichomes, 0.3-0.9 mm, with fewer, 2 (or 3)-rayed ones, 0.07-0.3 mm, adaxially with simple trichomes. Cauline leaves 1-3; sessile; blade lanceolate, margins entire, surfaces pubescent as basal. Racemes 2-7-flowered, ebracteate or proximalmost 1 or 2 flowers bracteate, slightly elongated in fruit; rachis not flexuous, glabrous. Fruiting pedicels divaricate-ascending, straight, 1-2 mm, glabrous. Flowers: sepals ovate, 0.7-1.3 mm, subapically sparsely pubescent, (trichomes simple); petals white, spatulate, 1.5-2 × 0.4-0.8 mm; anthers ovate, 0.2-0.3 mm. Fruits lanceolate, plane, flattened, 3-4 × 1-1.5 mm; valves pubescent, trichomes simple, 0.7-0.2 mm; ovules 14-16 per ovary; style 0.1-0.25 mm. Seeds oblong, ca. 0.6 × 0.4 mm.
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