Description from Flora of China
Herbs annual or biennial, glabrous. Flowering stems many branched from base, 6-10 cm, leafy. Leaf blade linear-lanceolate to linear, 6-10 mm, base broadly spurred, apex acute. Cyme corymbiform, dense. Flowers unequally 5-merous; pedicel 6-10 mm. Sepals oblong, 5-8.5 × 1.5-2.5 mm, veins with rust-colored dots, base spurred, apex acuminate. Petals yellow, linear-lanceolate, 6.5-7.5 × 2.4-2.8 mm, base connate for 0.8-1.3 mm and slightly narrowed, apex shortly mucronate. Stamens 10; antesepalous ones 5-6.5 mm; antepetalous ones 2.5-3.5 mm, inserted 2-3.5 mm from petal base. Nectar scales linear, 0.7-1 mm, apex slightly dilated. Carpels oblong, ca. 0.8 mm, mammillate. Fl. Aug-Sep, fr. Oct.
* Forest margins, rocks in forests and on alpine summits, stony places; 3200-4000 m. SW Sichuan, NW Yunnan.