Perennials; (cespitose); caudex branched (covered with persistent leaves or leaf remains); scapose. Stems unbranched, (0.3-) 0.5-1.7(-2.8) dm, pubescent throughout, trichomes simple and 2-rayed, 0.3-0.8 mm, with 3-5-rayed ones, 0.1-0.3 mm. Basal leaves rosulate; petiolate; petiole base (not thickened), ciliate, (trichomes simple, 0.3-1 mm); blade oblanceolate to obovate or lanceolate to oblong, 0.8-3 (-4.5) cm × 2.5-6(-9) mm, margins entire, surfaces abaxially pubescent with stalked, 2-4-rayed trichomes, 0.1-0.5 mm, with simple ones (midvein obscure, not thickened), adaxially glabrous or sparsely pubescent with simple and stalked, 2-4-rayed trichomes. Cauline leaves 0. Racemes 6-18-flowered, ebracteate, considerably elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels ascending to divaricate-ascending, straight or, sometimes, slightly curved upwards, 4-14 (-30) mm, pubescent, trichomes simple and 2-4-rayed. Flowers: sepals (purplish tinged), narrowly ovate, 2.5-3 mm, pubescent, (trichomes simple and fewer, stalked, 2-rayed); petals bright yellow, narrowly obovate, 3.5-5 × 1.7-2.5 mm; anthers ovate, 0.3-0.4 mm. Fruits elliptic, plane, flattened, 6-10 × 2-3 mm; valves glabrous or glabrescent, trichomes simple, (not confined to replum); ovules 12-24 per ovary; style 0.2-0.3 mm (stigma about as wide as style). Seeds (pale brown), ovoid, 0.9-1.3 × 0.6-0.9 mm. 2n = 80.
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