Herbs biennial or short-lived perennial, (10-)20-75(-110) cm tall, densely to sparsely hirsute, with stalked, forked or 3-or 4-rayed stellate trichomes mixed at least basally with varying amounts of simple ones. Stems erect, simple or few from base, often branched at middle. Basal leaves rosulate, present at anthesis; petiole often absent, rarely distinct and to 2.5 cm; leaf blade oblanceolate, narrowly obovate, oblong, or lanceolate, (1-)2-6(-8) × (0.5-)1-2(-2.5) cm, base attenuate, margin dentate, serrate, or rarely entire, apex obtuse or acute. Middle cauline leaves sessile, oblong, ovate, or elliptic, rarely suboblanceolate, (0.7-)1.5-4(-6) cm × (2-)4-14(-25) mm, with stellate trichomes sometimes mixed adaxially with simple ones, base cordate or auriculate, rarely amplexicaul, margin dentate or entire, apex obtuse or acute. Racemes ebracteate. Fruiting pedicels divaricate, rarely ascending or slightly reflexed, (0.4-)0.6-1.8(-2.5) cm, slender, straight or rarely slightly curved. Sepals oblong or sublanceolate, 2.5-3.5(-4) × 1-1.5 mm, glabrous or sparsely pubescent, not saccate. Petals white or rarely pale pink, oblong or narrowly oblanceolate, 4-6(-6.5) × 1-2 mm, apex obtuse. Filaments 3.5-5 mm; anthers oblong, 0.8-1 mm. Ovules 36-80 per ovary. Fruit (1.5-)2.5-5.5(-6.5) cm × 1-1.5 mm, erect or divaricate or rarely reflexed, not appressed to rachis; valves with a distinct midvein, torulose, glabrous; style 0.4-0.8 mm. Seeds brown, oblong or ovate, 1-1.3 × 0.7-0.9 mm, narrowly winged on distal half. Fl. and fr. Apr-Aug.