Lianas to 20 m, yellow tomentose. Petiole 1.5-2 cm; leaf blade usually broadly ovate or obovate, 18-20 X 12-14 cm, base rounded to shallowly cordate, apex acute; lateral veins 11 or 12 pairs. Cymes racemelike, to 35 cm, 9-13-flowered. Calyx tubular, 1.5-1.8 cm, apex toothed, erose-denticulate. Corolla pink or reddish, limb ca. 4 cm in diam., tube ca. 2.5 cm. Stamens inserted ca. 1 cm from base of corolla tube. Ovary and style glabrous. Follicles fusiform, ca. 25 X 2 cm, tomentose, eventually glabrescent. Seeds with silky coma to 5 cm. Fl. May-Jul, fr. Aug-Dec.
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