Herbs. Leaf blade oblong, 15-23 × 7-10 cm, bullate, adaxially sparsely hirtellous with stellate hairs, abaxially densely gray stellate tomentose, base attenuate-decurrent, margin irregularly coarse dentate, apex acute, slightly oblique. Cymes grouped in axils, much branched, subsessile, ca. 5 cm in diam.; bracts linear-lanceolate, ca. 12 × 3 mm, 1(-3)-veined; bracteoles linear. Calyx narrowly campanulate, 1-1.2 cm, 3-3.5 mm in diam., somewhat enlarged in fruit; teeth linear, 6-7 mm. Corolla yellow, ± straight, 2-2.5 cm; tube ca. 2 mm wide at base, to 3.5 mm at throat; upper lip ca. 5 × 3.5 mm, lower lip ca. 6 × 7 mm. Nutlet 1 at maturity, ca. 6 × 3 mm, glabrous, smooth. Fl. and fr. Oct.

Forests; 900 m. Yunnan [Malaysia, Myanmar, India].