Perennials; (cespitose); caudex branched (covered with persistent leaves); scapose. Stems unbranched, 0.5-1.5 dm, pubescent throughout, trichomes simple and long-stalked, 2-rayed, 0.3-1 mm, with smaller, 2-4-rayed ones, 0.1-0.5 mm. Basal leaves rosulate; petiolate; petiole base and margin ciliate, (trichomes simple, 0.5-1.2 mm); blade oblanceolate, 1-3.1 cm × 2-7 mm, margins entire, surfaces densely pubescent, abaxially with stalked, (2-)4-rayed trichomes, 0.2-0.8 mm, adaxially mostly with long-stalked, 2-rayed trichomes, 0.6-1.3 mm, sometimes with simple and 3-or 4-rayed ones. Cauline leaves 0 (or 1); sessile; blade oblong, margins entire, surfaces pubescent as basal. Racemes 12-43-flowered, ebracteate, elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels divaricate to ascending, straight or curved, (6-)10-17 mm, pubescent as stem. Flowers: sepals oblong, 2-2.5 mm, pubescent, (trichomes short-stalked, 2-4-rayed); petals yellow, linear-oblanceolate, 3-3.5 × 0.5-1 mm; anthers oblong, 0.5-0.6 mm, (exserted). Fruits oblong to linear-oblong, slightly twisted or plane, flattened, 6-10 × 2.5-4 mm; valves pubescent, trichomes short-stalked, cruciform, 0.07-0.25 mm, sometimes with fewer, 2-or 3-rayed ones; ovules 8-24 per ovary; style (0.8-)1.2-3.5 mm. Seeds oblong, 1-1.2 × 0.6-0.8 mm.
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