Lianas to 6 m. Branchlets tawny brown, lenticellate, puberulent. Petiole ca. 1 cm; leaf blade elliptic-oblong, 5.5-9(-14) × 3-5(-8.5) cm, ± leathery, adaxially glabrous, abaxially glabrescent, base acute, apex acute or apiculate; lateral veins ca. 8 pairs. Cymes rusty pubescent. Corolla ca. 8 mm in diam.; lobes membranous, oblong, adaxially villous at base. Corona lobes slightly shorter than anther tips. Stigma head slender. Follicles oblong-lanceolate, 10-15 × 1.2-1.8 cm, rusty pubescent when young. Seeds ovate, ca. 1.8 mm, beaked; coma ca. 2 cm. Fl. May-Jun, fr. Aug-Dec.
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