Plants perennial, (6-)10-25(-30) cm tall, tomentose, with woody caudex. Trichomes dendritic; glandular trichomes absent. Stems several from base. Basal leaves green or canescent; petiole 0.5-2 cm; leaf blade linear, lanceolate, or obovate, (3-)4-8(-13) cm × 5-10 mm, base attenuate, margin entire, obtusely sinuate-dentate, pinnatifid, or pinnatisect and with entire, dentate, or lobed lateral segments, apex subacute. Uppermost cauline leaves subsessile, smaller, often undivided. Fruiting pedicels thickened, divaricate, (2-)5-12(-17) mm. Sepals oblong, (2.5-)3-4(-5) × 0.5-1 mm, lateral pair broader. Petals yellow, (5-)6-8(-9) × 2.5-3.5 mm, base attenuate into a claw. Median filament 5-6 mm, united to middle or slightly above; lateral filaments 3.5-4 mm; anthers 2-2.5 mm. Ovules 20-40 per ovary. Fruit linear, (2-)3.5-5.5(-6.5) cm × 1.5-2.2 mm, divaricate to divaricate-ascending, straight or curved; valves thickened, tomentose; style 1-3 mm, thickened; stigma lobes erect to subconnivent. Seeds brown, oblong, 2-2.5 × 0.6-0.8 mm. Fl. Apr-Jun, fr. May-Jul.
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