Lianas to 20 m. Branches, branchlets, and leaves densely yellow hirsute. Petiole 1.4-2 cm; leaf blade elliptic, 13-22 X 6-12 cm, membranous, hirsute, base broadly cuneate, apex acute; lateral veins 10-12 pairs. Cymes terminal. Pedicel ca. 1 cm, pubescent. Calyx tubular, ca. 1.5 cm, pubescent outside, apex 5-toothed. Corolla white, glabrous, tube ca. 2.8 cm; lobes narrowly obovate, ca. 2.5 cm. Stamens inserted near base of corolla tube; disc cup-shaped, shorter than ovary. Ovary and style villous. Follicles linear, 24-26 ca. 1 cm, pubescent. Seeds narrowly ovate, flat, ca. 2.2 cm, coma ca. 5 cm. Fl. May-Aug, fr. Aug-Dec.
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