Berteroa potaninii Maximowicz, Bull. Acad. Imp. Sci. Saint-Pétersbourg, Sér. 3, 26: 422. 1880; Alyssum magicum Z. X. An; B. potaninii var. latifolia Z. X. An.

Plants (9-)15-25(-30) cm tall. Basal leaves canescent, sparsely stellate; petiole (0.3-)0.7-2(-2.5) cm, slightly expanded at base; leaf blade broadly oblanceolate or oblong-lanceolate, (0.6-)1-5(-6) cm × 3-10 mm, base cuneate, margin entire, apex obtuse. Cauline leaves linear-lanceolate, (0.8-)1-3.5 cm × 2-4(-6) mm, sessile, apex obtuse. Fruiting pedicels divaricate, slender, straight, 5-14 mm. Sepals sparsely pubescent, 3-4 × ca. 1.5 mm. Petals yellow, obovate, 5-7 mm; lobes ovate or oblong, 1-2 × 0.5-1.5 mm, obtuse. Filaments 3-4 mm; anthers 0.8-1.1 mm. Ovules to 14 per ovary. Fruit suborbicular or broadly obovate, 0.8-1.3 cm × 6-8 mm, flattened; valves sparsely stellate, acute to subacute at both ends, reticulate veined; gynophore to 1 mm; style sparsely stellate, 3-5 mm. Seeds suborbicular or broadly ovate, to 4 mm in diam., slightly flattened; wing membranous, to 1 mm wide. Fl. Apr-May, fr. Jun-Jul.

Rocky mountain slopes; 800-1700 m. Gansu, Nei Mongol, Xinjiang [Mongolia].