Biennials; usually eglandular, rarely glandular; finely pubescent, sometimes canescent, trichomes dendritic. Stems erect, unbranched basally, often many-branched distally, (1.5-)2.5-12 dm. Basal leaves: petiole 1-3.5(-5.5) cm; blade pinnatifid, broadly lanceolate to oblanceolate or obovate in outline, 1.5-10(-13) cm, lateral lobes linear to oblong or narrowly lanceolate, [3-10(-15) × 1-3(-5) mm], margins entire. Cauline leaves sessile or shortly petiolate; blade smaller distally, distal lobes often narrower. Racemes considerably elongated in fruit. Fruiting pedicels erect to erect-ascending, straight, 2-8(-11) mm. Flowers: sepals erect, yellowish, oblong, 1-1.8 mm, sparsely pubescent; petals oblanceolate, 1.2-2 × 0.3-0.6 mm; median filaments 1.4-2 mm; anthers 0.3-0.4 mm. Fruits erect, (often strictly appressed to rachis), linear, slightly torulose, (4-)5-10(-15) × 0.7-1.2(-1.5) mm, (acute at both ends); valves each with distinct midvein; septum often with distinct midvein; ovules 14-22 per ovary; style 0.1-0.4 mm, glabrous. Seeds uniseriate, reddish brown, ellipsoid to narrowly oblong, 0.8-1.2 × 0.4-0.5 mm. 2n = 14, 28.
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