Petiole to 10 cm, densely brown woolly; leaf blade ovate to broadly ovate, rarely elliptic or obovate, 4-10 X 2-7.2 cm, adaxially densely pubescent, abaxially densely brown woolly, more densely along veins, base cordate to rounded, margin nearly entire to shallowly crenate, apex rounded; lateral veins 4-7 on each side of midrib, distinct. Cymes 3-7-flowered; peduncle 6-23 cm, densely pale brown woolly, glabrescent; bracts 2(or 3), lanceolate to triangular, ca. 4-7 X 1-2 mm, sericeous to glabrescent, margin entire. Pedicel 1-2.5 cm. Calyx segments lanceolate, 4-6 mm, margin entire. Corolla pale yellow to orange-yellow, 1.5-1.7 cm, outside sparsely pubescent; tube campanulate, gradually ampliate from base to apex, 1-1.2 cm X 7-8 mm; limb slightly 2-lipped; adaxial lip 2-lobed from near middle, all lobes 3-6 X 3-5 mm. Stamens adnate to corolla 1-5 mm above base, 4-5.5 mm; filaments slender, glabrous; anthers horseshoe-shaped, 1-loculed, dehiscing transversely; staminode 1, ca. 3.2 mm. Disc ca. 2 mm, subentire. Pistil ca. 7 mm, glabrous to sparsely puberulent. Stigmas 2, lobes suborbicular. Capsule 1.5-3(-4) cm X 2-3 mm. Fl. Oct-Dec, fr. Nov-Dec.

* Under forests on slopes; 1000-1900 m. Hainan.