Description from Flora of China
Herbs biennial, glabrous. Roots fibrous. Stems branched from base, erect or ascending, 5-15 cm. Leaf blade obovate to obovate-oblong, 6-22 × 1.8-8 mm, adaxially papillate-hairy, base obtusely spurred, apex obtuse. Cyme corymbiform, dense; bracts obovate to obovate-oblong. Flowers unequally 5-merous; pedicel 0.4-0.8 mm. Sepals oblong to subobovate, subequal or equal, 3.5-4.5 or less × ca. 1.1 mm, base obtusely spurred, apex obtuse. Petals yellow, narrowly oblong, 5-6 × 1.2-1.3 mm, base connate for ca. 0.3 mm and narrowed, apex submucronate to mucronate. Stamens 10; antesepalous ones ca. 4.3 mm; antepetalous ones ca. 3 mm, inserted ca. 1.6 mm from petal base; anthers retuse at apex. Carpels oblong, 5.5-6 mm, base connate for 1-1.5 mm, apex attenuate; ovules many. Styles ca. 1.5 mm. Seeds ca. 1 mm, mammillate. Fl. Aug-Sep, fr. Sep-Oct.
* Rocks on woodland slopes or in valleys, trails on slopes, rock crevices, stone walls; 1300-3000 m. W Sichuan, E Xizang.