Stems ca. 40 cm, sparsely purple-brown spotted, densely pubescent, simple, with ca. 10 nodes. Petiole 3-6 cm; leaf blade elliptic, 14-20 X 7-10.5 cm, pubescent, base decurrent and joined across node, margin entire, apex acute, vermiform sclereids surrounding vascular bundles; lateral veins 5-9 on each side of midrib. Cymes 6-or more flowered; peduncle 2.5-5 cm, densely pubescent; involucre ca. 1.5 cm in diam., outside densely pubescent. Calyx 5-sect from base; segments equal, ovate-oblong, 9-10 X 3-4 mm, outside and margin glabrous. Corolla outside white, inside purple spotted, ca. 2.2 cm, outside sparsely glandular puberulent, inside with a ring of hairs; tube ca. 1.7 cm; adaxial lip ca. 3.5 mm; abaxial lip ca. 5 mm. Anthers ca. 4 mm; staminodes 3, 0.6-3.5 mm. Pistil ca. 1.4 cm, glabrous. Capsule unknown. Fl. Sep-Oct.
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