Perennials; (cespitose); caudex simple or branched (with persistent leaf remains); not scapose. Stems unbranched, 0.1-0.4 dm, pubescent, trichomes 5-10-rayed, 0.05-0.2 mm, and fewer, simple and 2-rayed ones, 0.3-0.6 mm. Basal leaves rosulate; subsessile; petiole ciliate; blade obovate to oblanceolate, 0.2-0.4 cm × 0.7-1.5 mm, (base sparsely ciliate, trichomes simple and 2-rayed, 0.4-0.6 mm), margins entire, surfaces densely pubescent with subsessile, 6-12-rayed, stellate trichomes, 0.25-0.7 mm. Cauline leaves 1-3 (or 4); sessile; blade ovate to lanceolate, margins entire or denticulate, surfaces pubescent as basal. Racemes 2-5 (-8)-flowered, proximalmost 1-3 flowers bracteate, slightly elongated in fruit; rachis not flexuous, pubescent, trichomes 5-10-rayed. Fruiting pedicels ascending, straight, 0.7-2(-3) mm, pubescent as rachis. Flowers: sepals (sometimes persistent), ovate, 1.2-1.7 mm, pubescent, (trichomes simple and branched); petals white, obovate, 2-2.5 × 1-1.2 mm; anthers ovate, 0.1-0.2 mm. Fruits elliptic to lanceolate, slightly twisted or plane, flattened, 3.5-5 × 1.5-2 mm; valves pubescent, trichomes short-stalked, (3 or) 4(-6)-rayed, 0.1-0.2 mm; ovules 16-24 per ovary; style 0.2-0.4 mm. Seeds oblong, 0.7-1 × 0.4-0.5 mm.
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