Lianas to 2 m. Branches glabrescent. Petiole ca. 6 mm; leaf blade oblong to oblong-lanceolate, 3-6 × 1.5-2.5 cm, abaxially glabrous or puberulent when young, base rounded or rarely cuneate, apex obtuse; lateral veins 3 or 4 pairs, nearly flat. Inflorescences umbel-like; peduncle ca. 2 mm, tomentose. Pedicel ca. 2 mm, pubescent. Sepals ovate, ca. 1 × 0.5 mm, ciliate; without glands. Corolla subcampanulate, ca. 1.5 mm, ca. 2 mm in diam., glabrous outside; throat with many rows of short straight hairs; lobes ovate, ca. 0.5 × 0.5 mm. Corona lobes subulate. Anthers slightly shorter than co-rona lobes; pollinia ellipsoid. Stigma head lower than anthers. Follicles lanceolate, ca. 5 cm × 8 mm, glabrous. Fl. May-Jul, Jul-Oct.
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