Lianas to 8 m, glabrous except for flowers. Petiole 4-10 mm; leaf blade narrowly oblong or narrowly ovate, 5.5-12.5 X 1.5-3.7 cm, membranous, base cuneate or rounded, apex long acuminate; lateral veins 15-25 pairs, subparallel, anastomosing near blade margin. Cymes 3-7 cm, di-or trichasial. Mature flower buds 7.5-9 mm, apex conical. Corolla white; tube 5-8 mm, throat dilated, pubescent inside; lobes ovate or broadly ovate. Stamens inserted near corolla throat; disc shorter than ovary. Ovary densely pubescent. Style long. Follicles 3-14 cm X 2-3 mm. Seeds narrowly oblong, ca. 1.3 cm, coma ca. 2.5 cm. Fl. May-Jul, fr. Jul-Oct.
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