Lianas woody, to 10 m, glabrous except for young shoots and inflorescences. Stems densely lenticellate. Petiole 3-5 mm; leaf blade obovate, narrowly obovate, or narrowly elliptic, 8-15 X 3-4.5 cm, leathery, base cuneate or rounded, apex acute, abruptly caudate, or acuminate; lateral veins to 15 pairs. Cymes axillary or sometimes subterminal, to 3 cm. Pedicel 3-8 mm. Sepals appressed to corolla tube, ovate, obtuse, basal glands ca. 10. Corolla purplish, tube ca. 5 mm; lobes narrowly obovate, 5-7 mm. Stamens inserted at base of corolla tube, included. Follicles connate, cylindric to fusiform, 10-15 X 1-1.5 cm, glabrous. Seeds broadly ovate, ca. 1.5 cm, coma ca. 5 cm. Fl. May-Jul, fr. Aug-Oct.
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