Subshrubs. Stems 9-40 cm, densely gray woolly. Leaves opposite, spread along stem; petiole 1-2.5 cm; leaf blade elliptic to oblong, 2-7 X 1-3 cm, thick papery, adaxially densely pubescent, abaxially densely gray woolly, base cuneate, margin dentate, apex obtuse; lateral veins 5-7(or 8) on each side of midrib. Cymes axillary; peduncle 4-5 cm, densely puberulent when young, glabrescent; bracts early deciduous. Pedicel 0.5-1 cm. Calyx 5-sect from base; segments lanceolate, 1.5-2 X 0.5-1 mm, outside puberulent. Corolla pale purple; tube 3-5 mm; adaxial lip lobes 3-3.5 mm; abaxial lip central lobe ca. 5 mm, lateral lobes ca. 3 X 2.6 mm. Filaments 1.5-2 mm; anthers 2-2.5 mm; staminodes 2. Pistil glabrous; ovary ca. 3 mm. Style ca. 6 mm. Capsule spirally twisted, 0.8-1.5 cm, glabrous. Fl. Jul, fr. Sep.

* Limestone hills; ca. 600 m. Hainan (Changjiang Xian).