Herbs perennial, 20-45(-60) cm tall. Caudex simple or branched. Stems erect, simple, sparsely pubescent with a mixture of simple and sessile stellate trichomes, apically tomentose with appressed stellate ones. Basal leaves rosulate; petiole 0.6-3 cm; leaf blade narrowly oblanceolate to spatulate, (0.7-)1-3(-4) cm × 2-4 mm, abaxially pubescent with stalked, 3-or 4-rayed stellate trichomes, adaxially with a mixture of primarily simple trichomes and fewer stellate ones, base attenuate, margin dentate or entire, apex subacute. Cauline leaves 3-6(-9), sessile; leaf blade oblong, lanceolate, or ovate, 0.8-3(-4) cm × 3-7(-9) mm, pubescent as basal leaves, base cuneate, rarely obscurely auriculate, margin dentate or subentire, apex obtuse or acute. Racemes 10-25-flowered, ebracteate, elongated considerably in fruit. Fruiting pedicels 6-13(-17) cm, ascending, straight, pubescent all around with appressed stellate trichomes, rarely sparser adaxially. Sepals ovate, 1-2 × 0.8-1.5 mm, ascending, abaxially sparsely pilose with primarily simple trichomes, base of lateral pair not saccate, margin membranous. Petals yellow, obovate, 3-4.5 × 1.5-2 mm, apex emarginate; claw to 1 mm. Filaments 1-2 mm; anthers ovate, 0.4-0.5 mm. Ovules 16-20 per ovary. Fruit ovate to ovate-lanceolate, 7-12 × 3-4 mm, latiseptate, not twisted; valves pilose with simple and forked trichomes, with a distinct midvein extending to middle; style 0.5-1 mm. Seeds brown, ovate, 1.2-1.5 × 0.8-1 mm. Fl. and fr. Jun-Aug.
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