Stems twining to 3 m, pilose, glabrescent. Leaves opposite; petiole ca. 1.5 cm; leaf blade elliptic, 6-10 × 2.5-4 cm, leathery, glabrous, base cuneate or rounded, apex acuminate or caudate; lateral veins 5-9 pairs. Inflorescences racemelike, 2-3 cm, 5-10-flowered; peduncle 1-2 cm, puberulent. Pedicel ca. 5 mm, puberulent. Sepals ovate, ca. 1.5 × 0.8 mm, ciliate, puberulent. Corolla white, glabrous; lobes oblong-ovate, ca. 3.2 × 1.7 mm, apex acute or obtuse. Corona cupular, longer than gynostegium, plicate, margin with 10 teeth alternating with pairs of minute, rounded teeth. Anther appendages ovate, apiculate; pollinia elliptic. Stigma head raised. Fl. May-Oct.
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