Herbs annual, glabrous. Roots fibrous. Flowering stems branched near base, erect, 2-4 cm. Leaf blade oblong, 3-5 mm, base broadly spurred, apex obtuse. Cyme corymbiform, many flowered; bracts broadly lanceolate. Flowers unequally 5-merous, long pedicellate. Sepals broadly lanceolate, ca. 3 mm, base spurless, apex subacute. Petals ± free, whitish when dry, lanceolate, ca. 4 mm, base broadened, apex obtuse. Stamens 10; antesepalous ones longer; antepetalous ones inserted 1-1.2 mm from petal base. Nectar scales linear-spatulate, ca. 0.7 mm, apex obtuse. Carpels obovoid, ca. 3 mm, base connate, apex divergent. Styles long. Follicles 1-3-seeded; placenta basal. Seeds subovoid, ca. 1 mm, mammillate. Fl. Aug-Sep, fr. Sep.

* Alpine pastures, bare places on mountain summits; 4300-4600 m. S Qinghai (Zhidoi Xian), W Sichuan (Danba Xian).