Subshrubs. Stems 25-30 cm, sparsely puberulent. Petiole 0.3-1.5 mm; leaf blade obovate to elliptic, 3.5-11 X 3-6 mm, leathery, adaxially puberulent near margin or glabrous, abaxially glabrous, base cuneate to rounded, margin 1-3-denticulate to crenate or entire, apex obtuse; lateral veins obscure. Cymes 1-flowered; peduncle 1.8-2.6 cm, glabrous; bracts subulate, ca. 0.8 X 0.2 mm. Pedicel 1-1.2 cm. Calyx 5-sect from base; segments 1.5-4 mm, glabrous. Corolla ca. 1.3 cm, glabrous; tube funnelform-tubular, ca. 9 X 3-4 mm; adaxial lip ca. 2 mm; abaxial lip ca. 4.5 mm. Stamens ca. 7 mm; filaments ca. 5 mm; anthers subglobose; connective unappendaged; staminodes 3, central 1 ca. 0.4 mm, laterals ca. 1.5 mm. Disc ringlike, margin entire. Pistil ca. 8 mm, glabrous. Capsule 6.5-8 cm. Seed appendages subulate, 0.5-0.7 mm. Fl. Jul, fr. Jul, Sep.

* On trees or rocks, valleys, forests by streams; 1300-1500 m. SW Hubei (Xianfeng Xian), NW Hunan (Sangzhi Xian), Sichuan (Emei Xian).