Herbs annual, glabrous. Roots fibrous. Flowering stems many branched above base, erect, 6-10 mm. Leaves larger toward stem apex; leaf blade lanceolate to oblong, 4-7 mm, basal spur obtuse and entire or rarely ± lobed, apex abruptly and shortly apiculate. Cyme corymbiform, few flowered; bracts oblong. Flowers unequally 5-merous. Sepals abaxially dark red mottled, oblong, unequal, 4.2-6 mm, base obtusely spurred, apex acute. Petals yellow, oblong, 6-7 mm, base connate for ca. 0.5 mm, apex long mucronate. Stamens 10; antesepalous ones 4-4.5 mm; antepetalous ones inserted ca. 1 mm from petal base. Nectar scales oblong spatulate, ca. 0.5 mm, apex obtuse. Follicles suberect, 5-5.5 mm, 10-12-seeded, base connate for 1.5-1.8 mm; placenta falcate. Seeds subovoid, ca. 0.8 mm, mammillate. Fl. Aug-Sep, fr. Sep-Oct.

* Grasslands, meadows, shady places on alpine slopes, sunny places, rocks in valleys, beaches; 3200-4400 m. W Sichuan (Dawu Xian, Kangding Xian).