Lianas to 10 m, pale brownish tomentose. Petiole 1-2 cm; leaf blade broadly ovate or orbicular, 5-16 X 4-12 cm, base rounded or obtuse, apex acuminate or obtuse, rarely retuse; lateral veins 8-10 pairs. Cymes terminal, many flowered; peduncle to 6 cm; bracts and bracteoles very narrowly elliptic, 0.9-1.1 cm. Pedicel ca. 5 mm. Calyx with several glands inside margin of sepals; sepals very narrowly elliptic, 0.9-1.1 cm, pubescent on both surfaces. Corolla white, minutely tomentose outside, glabrous at throat; tube shorter than sepals, 6-7 mm; lobes oblong, as long as tube. Disc longer than ovary. Ovary pubescent at apex. Follicles 2, cylindric, to 30 X 0.8-1.2 cm, yellow hirsute. Seeds oblong, 1-2 cm X ca. 5 mm, coma 2-4.5 cm. Fl. May-Aug, fr. Sep-Dec.
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