Perennials; caudex branched (densely covered with persistent petiole remains, branches sometimes terminating in sterile rosettes); scapose. Stems un-branched, 0.5-1.8 dm, glabrous. Basal leaves rosulate; long-petiolate; petiole ciliate throughout; blade oblanceolate to linear-oblanceolate, 1.5-5.5 cm × (1.5-)2-5.5 mm, margins entire (ciliate, trichomes simple, 0.2-1 mm), surfaces abaxially sparsely pubescent with short-stalked, submalpighiaceous trichomes, 0.3-1.3 mm, sometimes with 3-or 4-rayed ones, adaxially usually glabrous, rarely sparsely pubescent. Cauline leaves 0. Racemes 3-8(-10)-flowered, ebracteate, considerably elongated in fruit; rachis not flexuous, glabrous. Fruiting pedicels ascending to divaricate-ascending, straight, 5-14(-17) mm, glabrous. Flowers: sepals broadly ovate, 2-3 mm, subapically sparsely pubescent, (trichomes simple); petals yellow, oblanceolate, 4.5-7 × 1.2-2 mm; anthers ovate, 0.4-0.5 mm. Fruits elliptic to oblong-elliptic, plane, flattened, 3-10(-14) × 2-3 mm; valves glabrous; ovules 20-28 per ovary; style 0.6-1 mm. Seeds oblong, 1.2-1.4 × 0.7-0.8 mm. 2n = 22.
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