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Herbs annual or biennial. Trichomes simple, mixed with short-stalked, forked smaller ones. Stems simple basally, branched above, base often hirsute with simple trichomes. Basal leaves petiolate or subsessile, not rosulate, simple, entire or toothed, rarely lobed, withered by flowering. Cauline leaves sessile, auriculate or sagittate at base, entire or dentate. Racemes ebracteate, elongated considerably in fruit. Fruiting pedicels slender, divaricate. Sepals oblong or ovate, erect, base of lateral pair not saccate. Petals yellow or rarely white, spatulate, longer than sepals, apex obtuse. Stamens 6, in 3 pairs of unequal length; filaments not dilated at base; anthers ovate or oblong, obtuse at apex. Nectar glands 4, 1 on each side of lateral stamen; median glands absent. Ovules 8-25 per ovary. Fruit dehiscent silicles or rarely siliques, obpyriform, obovoid, or rarely linear, shortly stipitate; valves leathery, often with a prominent midvein, smooth, margins of 2 valves flattened and connate, apex abruptly caudate and extending 1-2 mm into style; replum rounded, concealed by connate margins of valves; septum complete; style 1.5-4 mm; stigma capitate, entire. Seeds biseriate or rarely uniseriate, wingless or narrowly margined, oblong, plump or slightly flattened; seed coat minutely reticulate, copiously mucilaginous when wetted; cotyledons incumbent or rarely accumbent.
Sep erect, obtuse, the outer slightly saccate at base; pet yellow, spatulate; filaments linear; anthers ovate; short stamens flanked at base by a pair of semicircular glands; ovules 4–12 per cell; style slender, persistent; stigma capitate; fr obovoid or pyriform, firm-walled, slightly flattened parallel to the septum, somewhat keeled along the sutures, narrowed to the short-stipitate base; annuals or winter-annuals with simple and branched hairs; stems branched above; basal lvs narrowly spatulate, often repand; cauline lvs linear to lanceolate, clasping by a sagittate-auriculate base. 6, Eurasia.
Annual or biennial herbs with taproot and simple or branched hairs. Stems ± erect, with sessile undivided ± sagittate leaves. Racemes ebracteate, terminal. Sepals not saccate. Petals yellow or whitish, spathulate. Stamens 6, with linear filaments; anthers ovoid, obtuse. Nectaries at each side of the bases of the lateral stamens. Ovary pyriform, with very short gynophore and distinct style; stigma capitate. Fruit a silicula, dehiscent, with broad septum, obovoid to pyriform; valves distinctly convex. Seeds numerous, elliptic in outline, ± trigonous, mucilaginous.
Annual or biennial taprooted herbs. Hairs branched and simple. Stems erect, leafy. Lvs toothed to sinuate to pinnatifid. Racemes embracteate. Sepals erect, non-saccate. Petals yellow. Stamens 6, without appendages. Lateral nectaries 4, paired at bases of single stamens; median nectaries 0. Style short to long; stigma capitate. Silicle obovoid, latiseptate, dehiscent; valves with 1 median and a network of secondary veins. Seeds ellipsoid to orbicular, not winged, in 2 rows per locule.
Annual herbs. Sepals erect, equal. Petals clawed. Stamens 6. Median glands absent. Fruit a silicula, dehiscent; valves with a strong midrib vanishing above. Seeds in 2 rows per locule, mucous. Radicle incumbent or accumbent.
