Herbs annual, glabrous. Roots fibrous. Stems simple or branched, erect or ascending, 2.5-5 cm. Leaf blade linear to linear-lanceolate, 2.5-7.1 mm, base spurred, apex subacute. Cyme corymbiform, few to many flowered. Flowers unequally 5-merous; pedicel 1-2.5 mm. Sepals suboblong, ca. 3 mm, base spurless, apex obtuse. Petals suboblong, 4-4.5 mm, base free to subconnate, apex obtuse and ± helmet-shaped. Stamens 10; antesepalous ones ca. 3.5 mm; antepetalous ones inserted 0.8-1 mm from petal base. Nectar scales linear to sublinear-spatulate, apex obtuse. Carpels divergent, base connate. Follicles oblong, 2- or 3-seeded; placenta lunulate. Seeds hairlike, basal appendage stomach-shaped; funicle long. Fl. Aug-Sep, fr. Sep-Oct.

* Alpine grasslands by trails; 4000-4600 m. W Sichuan.