Perennials; (loosely cespitose); caudex branched (somewhat surculose, with persistent leaf remains, branches sometimes terminating in sterile rosettes); often scapose. Stems un-branched, (0.2-)0.4-1.1(-1.5) dm, usually pubescent through-out, rarely glabrous, trichomes simple and 2-4-rayed, 0.1-0.6 mm. Basal leaves rosulate; blade (somewhat fleshy), oblanceolate or spatulate to obovate, 0.4-1.6(-2.5) cm × (1.5-)3-6 (-10) mm, margins entire, surfaces pubescent with stalked, cruciform, and fewer 2-or 3-rayed trichomes, 0.07-0.5 mm, rarely both surfaces glabrous and trichomes on margins, (midvein obscure abaxially). Cauline leaves 0-3 (or 4); sessile; blade ovate to oblong, margins entire, pubescent as basal. Racemes (5-)7-18 (-25)-flowered, usually ebracteate, sometimes proximalmost 1 or 2 flowers bracteate, elongated in fruit; rachis not flexuous, usually pubescent as stem, rarely glabrous. Fruiting pedicels divaricate-ascending, straight, (4-)7-10 mm, usually pubescent as stem, rarely glabrous. Flowers: sepals ovate, 2.5-3.2 mm, glabrous or pubescent, (trichomes 2-4-rayed); petals yellow, oblanceolate, 5.5-8 × 1-2 mm; anthers oblong, 0.7-0.9 mm. Fruits lanceolate to elliptic-lanceolate or broadly ovate, plane (not curved), strongly flattened, 6-11 (-15) × 3-5 mm; valves usually pubescent, rarely glabrous, trichomes simple and 2-4-rayed, 0.05-0.3 mm; ovules 8-22 per ovary; style (0.7-)1.6-3 mm. Seeds oblong, 1-1.6 × 0.8-1 mm, (sometimes distally appendaged).
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