Stems 20-23 cm, sparsely purple-brown spotted, densely pubescent, simple, with 5-7 nodes. Petiole 1-7 cm; leaf blade slightly oblique, obovate to narrowly so, 3-15.5 X 1.8-5.5 cm, pubescent, base oblique, cuneate, margin entire, apex acuminate to rounded or emarginate, without sclereids; lateral veins 3-6 on each side of midrib. Cymes 2-or 3-flowered; peduncle 4-5 cm, pubescent; involucre 4-5 mm in diam., outside sparsely glandular pubescent. Calyx 5-sect from base; segments equal, narrowly lanceolate, 6-7 X 2-2.2 mm, outside and margin sparsely glandular puberulent. Corolla outside white, 3-3.2 cm, outside sparsely glandular puberulent, inside glabrous; tube 2.4-2.5 cm; adaxial lip ca. 5 mm; abaxial lip ca. 8 mm. Anthers ca. 1.5 mm; staminodes 3, 0.4-2.5 mm. Pistil ca. 1.2 cm, white pilose. Capsule unknown. Fl. Sep.
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