Stems 9.5-15.5 cm, brownish puberulent. Petiole 0.3-2.7 cm; leaf blade ovate, 4-8 X 3.4-5.8 cm, adaxially sparsely puberulent, abaxially sparsely puberulent along veins, base slightly oblique, broadly cuneate to rounded, margin irregularly dentate, apex acute to abruptly acuminate. Peduncle ca. 1 cm, puberulent. Calyx ca. 7 mm in diam.; tube ca. 2.5 mm; lobes triangular, ca. 2.5 mm. Corolla ca. 1 cm; tube ca. 5 mm; adaxial lip ca. 2.5 mm; abaxial lip ca. 4 mm. Stamens ca. 2.4 mm; staminode ca. 0.8 mm. Pistil ca. 5.5 mm, glabrous; ovary ca. 1.5 mm. Fl. Jun.
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