Subshrubs. Stems ca. 25 cm, glabrous or sparsely puberulent near apex. Petiole 4-10 mm; leaf blade oblong to narrowly elliptic, 8-14 X 2-4 cm, papery, glabrous, base cuneate to broadly cuneate, margin denticulate, apex acuminate to long acuminate; lateral veins 5-8 on each side of midrib, flat. Cymes 2-4-flowered; peduncle 5.5-7.5 cm, glabrous; bracts linear, 2-4 X 0.2-0.8 mm. Pedicel to 10 mm. Calyx 5-sect from base; segments 4-5 mm, glabrous. Corolla purple, ca. 3 cm, glabrous; tube tubular-funnelform, ca. 2 X 0.8 cm; adaxial lip ca. 6 mm; abaxial lip ca. 1 cm. Stamens ca. 5 mm; filaments ca. 4 mm; anthers oblate; connective unappendaged; staminodes 2, ca. 2 mm. Disc ringlike, margin entire. Pistil ca. 1.2 cm, glabrous. Capsule 6-7.5 cm. Seed appendages to 2 mm. Fl. Aug.

On trees in broad-leaved forests; ca. 2000 m. SE Xizang (Mêdog Xian) [Bhutan, NE India, Nepal, Sikkim].