Herbs annual, glabrous. Stems prostrate, 4-15 cm. Leaf blade spatulate and ca. 1 cm on proximal leaves, subpanduriform and 4-8 mm on distal ones, basal spur broad and obtuse, apex obtuse. Flower solitary, terminal, unequally 5-merous. Sepals narrowly oblong to ± oblanceolate-oblong, 4.5-6 mm, base obtusely spurred, apex obtuse. Petals yellow, subobovate, ca. 5.8 mm, base connate and slightly narrowed, apex obtuse. Stamens 10; antepetalous ones inserted ca. 2 mm from petal base. Nectar scales linear, 1-1.2 mm, apex slightly dilated, retuse. Carpels basally connate for 1.2-1.8 mm, apically divergent. Follicles oblong, 4-5 mm, many seeded; placenta lunulate. Seeds obovoid, ca. 0.7 mm, mammillate; funicle curved. Fl. Apr, fr. May.

* Sides of wells; ca. 2100 m. WC Yunnan (Jingdong Xian).