Annuals; (slender); (glaucous), glabrous throughout. Stems often branched basally, (0.6-) 1-3.5 dm. Basal leaves rosulate; petiolate; blade oblanceolate to spatulate, 1-7 cm, margins usually sinuate to dentate, rarely lobed. Cauline leaves (shortly petiolate or sessile); blade oblong to ovate, 0.5-3 cm × 1-5 mm, (smaller distally), base auriculate or (distally) amplexicaul, margins entire or dentate apically, (entire distally). Racemes bracteate below or between proximalmost 1 or 2 flowers. Fruiting pedicels divaricate to ascending, (straight or recurved), 3-6 mm, (not expanded at receptacle). Flowers: calyx slightly urceolate; sepals rose-purple, 4-5 mm, not keeled; petals (spreading), pinkish, 7-10 mm, blade 3-5 × 1.5-2.5 mm, margins not crisped, claw 5-6 mm, narrower than blade; stamens in 3 unequal pairs; filaments (distinct): abaxial pair 3-4 mm, lateral pair 1.5-2.5 mm, adaxial pair 5-6 mm; anthers (all) fertile, 1.5-2 mm; gynophore 0.5-3 mm. Fruits ascending, torulose, straight, slightly flattened, 3-7 cm × 1-1.5 mm; valves each with obscure midvein; replum straight; ovules 24-52 per ovary; style 0.1-0.5 mm; stigma entire. Seeds oblong, 1-1.5 × 0.6-0.9 mm; wing (0-)0.05-0.25 mm, distal.
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