Herbs annual, (6-)10-40(-60) cm tall. Stems erect, simple or few branched at base, hispid with simple and/or forked or stellate trichomes. Basal leaves not rosulate, sessile, soon withered. Middle cauline leaves narrowly oblong to oblong-lanceolate, sessile, (1-)1.5-3.5(-5) cm × 2-7(-12) mm, abaxially primarily with 3-forked stalked stellate trichomes, adaxially with simple and stalked forked trichomes, base cuneate or subobtuse, not auriculate, margin entire or sparsely denticulate, apex acute. Fruiting pedicels stout, stellate pubescent, erect or ascending, appressed or subappressed to rachis, (3-)4-7.5 mm. Sepals oblong, 1.5-2.5 × 0.8-1 mm, pubescent. Petals white, spatulate, 4-8 × 1.5-2.5 mm, attenuate at base, emarginate at apex; claw to 1 mm. Filaments 1.5-3 mm; anthers ovate or oblong, 0.5-0.9 mm. Fruit linear, terete, strongly falcate, 1.5-3.5 cm × 1.5-2.5 mm, strongly torulose; valves densely pubescent with malpighiaceous, small trichomes mixed with sparser and much coarser, tuberculate-based, short-stalked, forked trichomes; style obsolete. Seeds light brown, 3-7 per fruit, narrowly oblong, uniseriate, 2.5-3.5 × 0.9-1.1 mm. Fl. Apr-Jul, fr. May-Jul.
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