Annuals or biennials; without caudex, (cespitose); densely pubescent, trichomes (sessile or short-stalked), few-rayed, rays (ascending or erect), simple or infrequently furcate near base, (long and slender, sometimes with U-shaped notch on one side, smooth or finely tuberculate). Stems several from base, erect (and stout) or outer ones decumbent, (unbranched or branched, stiff and densely foliate, sterile leaf-bearing branches sometimes present), to 4 dm. Basal leaves: blade obovate or elliptic, to ca. 3 cm, margins sinuate or shallowly dentate. Cauline leaves: (proximal usually shortly petiolate, distal sessile); blade obovate to broadly elliptic, 1-3 cm, margins sinuate or shallowly toothed. Racemes dense, compact, (elongated in fruit). Fruiting pedicels (recurved, curved or sigmoid), somewhat expanded apically. Flowers: sepals elliptic or narrowly elliptic or oblong, (3.8-)4.5-5.5 mm, (lateral pair cucullate, very convex, median pair tapering to base, thickened apically, cucullate, often slightly keeled); petals cuneate, 6.5-8 mm, (slightly expanded at base, margins sinuate, apex retuse or entire). Fruits (sessile or substipitate), oblong or broadly elliptic, compressed (latiseptate), 5-8 mm; valves pubescent, trichomes spreading, sparsely pubescent inside; ovules 4-6 per ovary; style 3-5 mm. Seeds flattened.
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