Description from Flora of China
Perennials, stemless. Rhizome internodes inconspicuous. Leaves basal, opposite; petiole 1-2.5 cm X ca. 6 mm; leaf blade elliptic to oblong, ca. 12 X 4.7-7.2 cm, thin papery, sparsely puberulent, eglandular, base oblique, cuneate to broadly cuneate on 1 side, broadly cuneate to rounded on other, margin indistinctly denticulate to crenulate or entire on 1 side, apex acute to obtuse; lateral veins ca. 6 on each side of midrib, inconspicuous. Cymes 2-4-flowered; peduncle ca. 7.2 cm, puberulent; bracts 2, free, elliptic, 8-9 X ca. 3 mm, puberulent, margin entire, apex acute. Pedicel 5-12 mm, puberulent. Calyx 5-sect from base; segments equal, lanceolate-linear, ca. 6 X 1-1.2 mm, outside purplish puberulent, inside glabrous, margin entire, apex acute. Corolla purple-white, ca. 3.5 cm, outside puberulent, inside sparsely puberulent on adaxial lip; tube funnelform-tubular, ca. 2.4 X 1.3 cm; adaxial lip ca. 3 mm; abaxial lip ca. 1.1 cm. Filaments ca. 8.5 mm, glandular puberulent above; anthers fused by entire adaxial surfaces, ca. 2.1 mm, bearded; staminodes 3, central ca. 0.8 mm, laterals ca. 6 mm. Pistil ca. 2.5 cm, puberulent and purplish glandular puberulent; ovary ca. 1.7 cm. Stigma trapezoid, ca. 2 mm, 2-lobed. Fruit and seeds unknown. Fl. Jun.
* Mixed forests on limestone hills. SW Guangxi (Longzhou Xian).