Perennials; (not cespitose); caudex simple or branched; not scapose. Stems sometimes branched distally, (0.5-) 1-3.5(-5.2) dm, pubescent throughout, trichomes simple (non-crisped), 0.4-1.3 mm, and 3-6-rayed ones, 0.1-0.5 mm. Basal leaves rosulate; petiolate; petiole (distinct or obscure) ciliate, (trichomes simple, to 0.8 mm); blade oblanceolate to obovate, (0.4-)1-3.7(-5) cm × (1-)2-7(-10) mm, margins entire or denticulate, surfaces pubescent, trichomes stalked, (2-)4-7 (or 8)-rayed, 0.2-0.5(-0.6) mm. Cauline leaves 5-20 (-26); sessile; blade oblong to lanceolate or ovate, margins entire or dentate, surfaces pubescent as basal, sometimes adaxially with simple trichomes. Racemes (10-)18-52(-72)-flowered, usually bracteate on proximalmost 1-12(-17) flowers, rarely ebracteate, elongated in fruit; rachis not flexuous, pubescent as stem. Fruiting pedicels divaricate-ascending to ascending or suberect, straight, 3-13(-20) mm, pubescent as stem. Flowers: sepals (green or yellowish), oblong, 2.2-3 mm, pubescent, (trichomes simple and branched); petals yellow, oblanceolate, 3.5-5 × 1.5-2.5 mm; anthers ovate, 0.4-0.5 mm. Fruits (often subappressed to rachis), lanceolate to linear-lanceolate or narrowly oblong, slightly twisted or plane, flattened, (6-)9-14(-17) × 2-3.5 mm; valves pubescent, trichomes simple and short-stalked, 2-4-rayed, 0.05-0.3 mm; ovules 28-38(-44) per ovary; style 0.5-1.2 (-1.5) mm. Seeds oblong, 0.9-1.3 × 0.5-0.7 mm. 2n = 74.
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