Description from Flora of China
Herbs annual, glabrous. Roots fibrous. Stems branched at base, erect, 1-3 cm. Proximal stem leaf blade subovate and 3-3.5 mm, others oblanceolate and 5-5.5 mm, base obtuse and shortly spurred, apex obtuse. Cyme 1-3-flowered; bracts oblanceolate. Flowers unequally 5-merous or equally 4- or 5-merous. Sepals of lateral flowers in 1 series, those of terminal flower in 2 series; outer sepals subovate, 6-6.5 mm, base obtusely spurred, apex obtuse; inner sepals broadly lanceolate, apex subacute. Petals ± free, yellow, oblong, 5.5-6 mm, apex obtuse. Stamens 10; antesepalous ones ca. 4 mm; antepetalous ones inserted ca. 2 mm from petal base. Nectar scales linear, slightly contracted at middle, ca. 8 mm, apex obtuse. Carpels divergent, base subconnate. Styles ca. 1 mm. Follicles suboblong, 4.8-5 mm, many seeded. Seeds obovoid, ca. 1 mm, mammillate; funicle curved, very long. Fl. Aug, fr. Sep.
* Alpine grasslands, rock crevices; 4400-4700 m. W Sichuan.