Description from Flora of China
Herbs perennial. Sterile stems present. Flowering stems simple, erect, thick, 25-35 cm, apically minutely mammillate. Leaves alternate; pseudopetiole 3-13 mm; leaf blade oblong, 2-5 × 1-3 cm, base attenuate and spurless, margin entire or remotely dentate, apex obtuse. Cyme branched, corymbiform, scorpioid, ca. 4 cm in diam., many flowered; bracts mostly obscure, sessile, obovate-oblong, 3.5-5.3 × 1-2 mm, margin minutely mammillate. Flowers unequally 5-merous. Sepals unequal, 3 linear and 1.7-2 mm, 2 oblong-linear and 2.5-3 mm, base connate. Petals yellow, oblong-lanceolate, 3.6-4 mm, apex mucronate. Stamens 10, 2.5-3 mm. Nectar scales suboblong-quadrangular, 0.3-0.4 mm. Carpels ovoid-lanceolate, 2.3-2.6 mm, base connate. Styles ca. 1 mm. Follicles divergent, many seeded. Seeds oblong, ca. 0.6 mm, minutely mammillate. Fl. Sep, fr. Oct.
* Rocks on slopes in Pinus forests, rocky caves near houses; 1900-3600 m. SW Hubei, SW Sichuan, NW Yunnan.