Perennials; (loosely matted, grayish); caudex branched (with persistent leaf bases, branches creeping, sometimes terminating in sterile rosettes); not scapose. Stems unbranched, 0.4-0.6 dm, densely pubescent throughout, trichomes dendritic, 3-6-rayed, (often crisped), 0.1-0.4 mm. Basal leaves (imbricate); not rosulate; sessile; blade obovate to oblanceolate, 0.4-1.1 cm × 2-3.2 mm, margins entire, (base and margins not ciliate), surfaces pubescent with stalked, 4-8-rayed trichomes, 0.1-0.5 mm, (sometimes 1 or more rays spurred), adaxially sometimes trichomes simple. Cauline leaves 2 or 3 (sometimes basal leaves spaced, flowering stem appearing to 8-leaved); sessile; blade oblong to ovate, margins entire, surfaces pubescent as basal. Racemes 4-15-flowered, ebracteate or proximalmost 1 or 2 flowers bracteate, slightly elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels divaricate-ascending, usually straight, rarely curved upward, 3-6 (-10) mm, pubescent, trichomes 3-6-rayed, (crisped, 0.1-0.4 mm), and, sometimes, simple. Flowers: sepals broadly ovate, 1.7-2.4 mm, pubescent, (trichomes short-stalked, 2-5-rayed); petals yellow, obovate to oblanceolate, 3-4.5 × 1.5-2.5 mm; anthers ovate, 0.4-0.5 mm. Fruits (not appressed to rachis), ovate to elliptic, plane, flattened, 4-6.5 × 2.5-4 mm; valves densely pubescent, trichomes simple and short-stalked, 2-5-rayed, 0.08-0.35 mm; ovules 6-12 per ovary; style (0.1-)0.3-0.7 mm. Seeds oblong, 1.4-1.8 × 0.8-1.2 mm.
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