Perennials; (cespitose); caudex simple or branched (well-developed, with persistent leaf bases); not scapose. Stems (decumbent to ascending), unbranched, (0.4-)0.6-1.3(-1.5) dm, usually glabrous proximally, rarely sparsely pubescent, pubescent distally, trichomes simple and short-stalked, 2-rayed, (crisped), 0.1-0.6 (-0.8) mm. Basal leaves rosulate; petiolate; petiole ciliate, (trichomes mostly simple, 0.3-0.8 mm); blade oblanceolate, 2-6(-7) cm × 2.5-8(-10) mm, margins entire, (pubescent as petiole), surfaces glabrous. Cauline leaves 2-4(-6); sessile; blade ovate to oblong, margins entire, (ciliate, trichomes simple and stalked, 2-rayed). Racemes (4-)8-20(-25)-flowered, ebracteate, elongated in fruit; rachis not flexuous, pubescent, trichomes simple and short-stalked, 2-rayed, (crisped), (0.1-0.8 mm). Fruiting pedicels divaricate-ascending, straight, 5-10(-15) mm, pubescent as rachis. Flowers: sepals (green tinged purplish), ovate to oblong, 2-3 (-3.3) mm, pubescent, (trichomes simple and 2-rayed); petals yellow, spatulate to subobovate, 3.5-5(-6) × (2-) 2.5-3.5(-4) mm; anthers ovate, 0.5-0.6 mm. Fruits lanceolate to ovate-lanceolate, slightly twisted, flattened, (7-)8-14 × 3-5 mm; valves glabrous; ovules 16-20 per ovary; style (0.4-)0.7-1.2(-1.5) mm. Seeds oblong, 1.2-1.7 × 0.8-1.1 mm. 2n = 24.
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