Herbs annual or biennial, 10-130 cm tall, glabrous, scabrous, or hispid. Roots fleshy, white, pink, red, or black, linear, fusiform, oblong, or globose, 1-100 × 0.5-45 cm, sometimes slender and not fleshy. Stems simple or branched. Basal leaves with petioles 1-30 cm; leaf blade oblong, obovate, oblanceolate, or spatulate in outline, 2-60 × 1-20 cm, lyrate or pinnatisect, sometimes undivided, margin dentate, apex obtuse or acute; lateral lobes 1-12 on each side of midvein, sometimes absent, oblong or ovate, to 10 × 5 cm. Uppermost cauline leaves subsessile, often undivided, dentate. Fruiting pedicels divaricate or ascending, straight, 0.5-4 cm. Sepals narrowly oblong, 5.5-10 × 1-2 mm, glabrous or sparsely pubescent. Petals purple, pink, or sometimes white, often with darker veins, broadly obovate, 1.2-2.2 cm × 3-8 mm, apex obtuse or emarginate; claw to 1.4 cm. Filaments slender, 5-12 mm; anthers 1.5-2 mm, sagittate at base. Fruit fusiform or lanceolate, sometimes ovoid or cylindric; seedless valvular segment 1-3.5 mm; seed-bearing distal segment (1-)3-15(-25) × (0.5-)0.7-1.3(-1.5) cm, corky, rounded at base, conical at apex, smooth or rarely slightly constricted between seeds, not ribbed; style 1-4 cm; stigma entire. Seeds globose or ovoid, 2.5-4 mm in diam. Fl. and fr. depending on cultivation time. 2n = 18*.