Plants sparsely to moderately puberulent, trichomes 0.05-0.3 mm. Stems often branched distally, 1-3.5(-4.5) dm, puberulent or glabrous. Basal leaves sometimes withered by flowering; rosulate or not. Cauline leaves: petiole 5-1.7 cm; blade (distal linear), margins pinnatisect: lobes linear to linear-lanceolate, 0.2-2 cm × 0.3-3 mm, margins entire, (surfaces glabrous or puberulent). Racemes (corymbose), rachis straight. Fruiting pedicels divaricate or horizontal to reflexed, straight, recurved, or curved upward, (2-)3-5.5(-10) mm, glabrous or puberulent. Flowers: sepals 1.5-2 × 0.5-0.7 mm, puberulent; petals white, 2-3.5 × 0.5-1 mm, claw ca. 1.5 mm; median filaments 1.2-1.5 mm; anthers ovate, 0.3-0.4 mm. Fruits divaricate-ascending to spreading or reflexed, often curved, smooth, (0.8-) 1.2-2.5(-3.2) cm × 1.2-1.5 mm; valves puberulent or glabrous; ovules 16-24 per ovary; style 1-2.5(-3) mm. Seeds 0.9-1.4 × 0.6-0.9 mm. 2n = 26, 28.
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