Perennials; (cespitose, densely pulvinate); caudex branched (covered with persistent leaves, branches creeping, sometimes terminating in sterile rosettes); scapose. Stems unbranched, 0.05-0.3 dm, densely pubescent throughout, trichomes simple, 0.4-1.3 mm, and stalked, 2-5-rayed, stellate, 0.1-0.6 mm. Basal leaves (imbricate); rosulate; sessile; blade linear to linear-oblanceolate, 0.4-1.2 cm × 0.8-1.5 mm, margins entire, (ciliate, trichomes simple and spurred, (0.4-)0.6-1.4 mm), surfaces pubescent, abaxially (dense) with stalked, 2-12-rayed trichomes, 0.1-0.8 mm, adaxially with simple and 2-rayed ones, 0.3-1 mm, (midvein prominent). Cauline leaves 0. Racemes 2-7-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels divaricate-ascending, straight, 3-9 mm, pubescent, trichomes simple (0.4-1.4 mm), and stalked, 2-5-rayed (0.1-0.6 mm). Flowers: sepals oblong, 2.8-3.5 mm, pubescent, (trichomes simple and short-stalked, 2-4-rayed); petals pale yellow, oblanceolate to spatulate, (4-)5-6 × (1.5-)2-3 mm; anthers oblong, 0.5-0.7 mm. Fruits often broadly ovoid to lanceolate, plane, slightly inflated basally, (5-)6-9 × (3-)3.7-5 mm; valves densely pubescent, trichomes simple and 2-rayed, (0.2-)0.4-1 mm, (occasionally with fewer, smaller, 4-or 5-rayed ones); ovules 8-12 per ovary; style (0.6-)0.8-1.2 mm. Seeds oblong, 1.7-2.2 × 1-1.4 mm.
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