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Herbs annual or biennial, rarely short-lived perennial. Trichomes absent or simple. Stems erect, sometimes decumbent. Basal leaves long petiolate, rosulate, simple, crenate, dentate, or sinuate. Cauline leaves petiolate, dentate. Racemes several flowered, ebracteate, bracteate throughout, or only basally bracteate. Fruiting pedicels slender or thickened, narrower than or as thick as fruit, terete. Sepals oblong, erect, glabrous, base of lateral pair not saccate. Petals white, longer than sepals; blade oblanceolate, apex obtuse; claw obscurely differentiated from blade. Stamens 6, slightly tetradynamous; filaments not dilated at base; anthers ovate or oblong, obtuse at apex. Nectar glands confluent, subtending bases of all stamens. Ovules 4-20 per ovary. Fruit dehiscent siliques, linear or oblong, terete or 4-angled, sessile; valves with a prominent midvein and distinct marginal veins, glabrous or scabrous, torulose; replum rounded; septum complete; style obsolete or distinct and to 6 mm; stigma capitate. Seeds uniseriate, wingless, oblong, plump; seed coat longitudinally striate, not mucilaginous when wetted; cotyledons incumbent.
Annual or biennial taprooted herbs. Hairs simple. Stems erect, leafy. Lvs simple, cordate to truncate, petiolate. Racemes ebracteate. Sepals erect, not saccate. Petals white. Stamens 6, without appendages. Lateral nectaries 4, joined around bases of lateral stamens; median nectaries 2. Style short; stigma capitate. Silique linear, dehiscent; valves with prominent midrib and 2 weaker lateral veins; beak 0. Seeds narrow-ovoid to cylindric, not winged, in 1 row per locule.
