Biennials; (glaucous), usually glabrous throughout (sometimes sepals pubescent). Stems (simple from base), often paniculately branched distally, (2.5-)6.5-12(-15) dm. Basal leaves rosulate; petiolate; blade (fleshy, purplish abaxially, gray-green adaxially, often mottled distally), oblanceolate to broadly obovate or orbicular, 1-7 cm, margins dentate or repand. Cauline leaves: blade broadly ovate to narrowly lanceolate, 0.7-5 cm × 2-40 mm, (much smaller distally), base auriculate to amplexicaul, margins entire. Racemes ebracteate, (lax, secund). Fruiting pedicels divaricate to ascending, (straight), 1-3(-4) mm. Flowers: calyx suburceolate; sepals pale yellow to violet, (ovate-lanceolate), 5-8 mm, keeled, (apex usually recurved, glabrous or sparsely to densely hirsute, trichomes to 1.3 mm); petals (barely exserted), creamy white (with brownish purple veins), 7-10 mm, blade 2-3 × 1-2 mm, margins not crisped (channeled), claw 5-7 mm, about as wide as blade; stamens in 3 unequal pairs; filaments: abaxial pair (connate ca. 1/2 their length), 4-6 mm, lateral pair 2-4 mm, adaxial pair (connate to apex), 7-9 mm; anthers: abaxial and lateral pairs fertile, 2-3 mm, adaxial pair sterile, 0.6-1 mm; gynophore 0.1-1 mm. Fruits suberect to divaricate, strongly torulose, usually straight, sometimes slightly curved, flattened, 2.5-8 cm × 1.5-2 mm; valves each with prominent midvein; replum constricted between seeds; ovules 24-38 per ovary; style 0.1-0.2 mm; stigma entire. Seeds oblong, 1.5-2 × 0.9-1.3 mm; wing (0-)0.05-0.1 mm wide, distal. 2n = 28.
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