Biennials or perennials; mostly glabrous, except blade auricles ciliate or sparsely pubescent. Stems 2-7.5(-10) dm. Basal leaves: petiole (1-)2-6(-9) cm, (sometimes ciliate); blade lyrate-pinnatifid, 1.5-5(-7) cm, lobes (0 or) 1 or 2(-4) on each side, lateral lobes oblong or ovate, 0.05-1.5 cm × 1-5 mm, not fleshy, margins entire, terminal lobe 2-7 cm × 10-55 mm. Cauline leaves: blade sometimes lyrate-pinnatifid, lateral lobes 1-3, margins (distalmost) dentate; conspicuously auriculate, auricles ovate or narrowly oblong, (margins entire). Fruiting pedicels erect, 2-4(-5) mm, terete or subquadrangular, slender (narrower than fruit, glabrous). Flowers: sepals 2-3 × 0.5-1 mm, lateral pair not saccate basally, margins scarious, (glabrous, apex sparsely pubescent to, rarely, glabrescent, subapically sparsely pubescent or, rarely, glabrous); petals yellow, narrowly oblanceolate, 2.5-4.5 × 0.5-1(-1.2) mm, base attenuate, apex rounded; filaments 2-3.5 mm; anthers 0.5 mm; ovules (16-)20-28 per ovary; gynophore to 0.5 mm. Fruits erect, appressed to rachis, torulose, terete to subquadrangular, (1.2-)1.8-2.8(-3) cm × 1-1.5 mm; style stout or slender, 0.2-1.5(-2) mm. Seeds brown, somewhat plump, ovoid or oblong, 0.8-1.5 × 0.5-1 mm.
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Glabrous biennial. Stems branched above, 50-80-(100) cm tall. Rosette lvs lyrate-pinnate or simple, (5)-15-20 × (2)-5-7 cm; terminal lobe ovate; lateral lobes in 0-2 pairs, < width of terminal lobe; margins sinuate. Upper stem lvs becoming simple, with deflexed lobes at base, ovate to rhomboid, coarsely bluntly toothed. Racemes to 30 cm tall; pedicels ascending, up to 5 mm long. Sepals with a few to many tangled hairs near apex, 2-3 × 0.5-0.7 mm. Petals 3-4 × 0.5-1 mm. Silique erect, 25-35 × 1-1.5 mm; style 1-1.5 mm long.
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