Perennials; (cespitose); caudex branched (with persistent leaf remains, branches relatively short); not scapose. Stems usually unbranched, (0.3-)0.4-1 dm, pubescent throughout, trichomes simple and 2-rayed, 0.4-1.4 mm, and shorter, 2-4-rayed ones, 0.05-0.3 mm. Basal leaves rosulate; subsessile; petiole not ciliate; blade obovate to spatulate or oblanceolate, 0.6-1.9(-2.4) cm × 2-5(-8) mm, (base ciliate, trichomes simple and 2-rayed), margins entire, surfaces abaxially pubescent with stalked, (2-)4-rayed trichomes, 0.3-0.6 mm, adaxially with simple and stalked, 2-rayed trichomes, 0.3-0.6 mm, and smaller, 3-or 4-rayed ones. Cauline leaves (1 or) 2-5; sessile; blade oblong to oblanceolate or ovate, margins entire, surfaces pubescent as basal. Racemes 12-40-flowered, ebracteate, slightly elongated in fruit; rachis not flexuous, pubescent, trichomes simple and 2-4-rayed. Fruiting pedicels horizontal to divaricate-ascending, straight, (3-)4-8 mm, pubescent, trichomes simple and 2-4-rayed (0.1-0.5 mm). Flowers: sepals broadly ovate, 2-2.7 mm, pubescent, (trichomes simple and short-stalked, 2-4-rayed); petals yellow, spatulate to oblanceolate, 3.5-5 × 1.4-2 mm; anthers oblong, 0.4-0.6 mm. Fruits elliptic or ovate to lanceolate, plane, slightly inflated basally, 4-7 × 2.5-3.5 mm; valves pubescent, trichomes simple and stalked, 2-4-rayed, 0.05-0.4 mm; ovules 8-12 per ovary; style 0.5-1.2(-1.4) mm. Seeds ovoid, 1-1.4 × 0.6-0.8 mm. 2n = 24.
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