Perennials; (not pulvinate); caudex branched (branches slightly loose, with persistent leaf remains, sometimes terminating in sterile rosettes); often scapose. Stems unbranched, (0.3-)0.8-2.3(-3) dm, pubescent proximally, glabrous or sparsely pubescent distally, trichomes simple and 2-4-rayed, 0.07-0.4 mm. Basal leaves (loosely) rosulate; petiolate; petiole base ciliate, margin not ciliate, (midvein obscure, trichomes simple and 2-rayed, 0.2-0.7 mm); blade oblanceolate to lanceolate, (0.3-)0.6-2.5(-3.5) cm × (1-) 2-7(-10) mm, margins entire or denticulate, surfaces pubescent, abaxially with stalked, cruciform trichomes, 0.2-0.5 mm, adaxially with cruciform and/or simple and 2-rayed ones. Cauline leaves 0-2 (or 3); sessile; blade elliptic to ovate or lanceolate, margins usually entire, rarely denticulate, surfaces pubescent as basal adaxially or trichomes predominantly simple. Racemes (2-)4-13(-18)-flowered, ebracteate, elongated in fruit; rachis not flexuous, glabrous or sparsely pubescent as stem. Fruiting pedicels divaricate-ascending or ascending, straight or often curved upward (not expanded basally), (3-)5-17(-22) mm, usually glabrous, rarely pubescent, trichomes simple and stalked, 2-4-rayed. Flowers: sepals ovate, 2.2-3 mm, glabrous or pubescent subapically, (trichomes simple and short-stalked, 2-rayed); petals pale yellow to creamy white, spatulate, 3-5 × 1.5-2.5 mm; anthers ovate, 0.4-0.5 mm. Fruits elliptic to oblong or linear-lanceolate, plane (not curved), flattened, 5-11(14) × 2-3 mm; valves usually glabrous, rarely margin pubescent, trichomes simple; ovules 16-30 per ovary; style 0.2-0.7 mm. Seeds oblong, 0.7-1.2(-1.5) × 0.4-0.7(-0.8) mm. 2n = 64.
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