Climbing shrub, younger branches stellate-hirsute, older ones with few orbicular lenticels. Leaves coriaceous, ovate-oblong to obovate-oblong, (10-)14-20 by 6-9 cm, 6-7(-8)-nerved, obtuse to acute, short-acuminate at the apex, rounded to obtuse, rarely acute at the base; rather densely stellate-hirsute, soon glabrescent, with slightly prominent midrib, nerves, and venation above; rather densely stellate-hirsute, glabrescent, with prominent nerves and faintly prominent to indistinct venation beneath. Petiole (6-)10-16 mm. Inflorescences terminal or axillary, 1½-12 cm, 5-50-flowered. Pedicel 1½-5 mm. Sepals transverse-oval, 1 & 2 2-2.3 by 3-3.5 mm, 4 & 5 2.3-2.8 by 3.5-4.8 mm, rather sparsely stellate-hirsute (hairs with 4-8 subequal, up to 300 µ long branches) in basal part outside, all glabrous along margins. Corolla 9-11 mm, tube 2½-3 mm; mid-petaline field 5-6 by 2.6-3.7 mm, densely appressed-hirsute (hairs with 4-8 branches, one distinctly stronger and longer, up to 600 µ long); lobules 4-4½ by 4-5 mm, rather thin, with rather distinct venation, crenulate at margin. Stamens inserted 1-1½ mm above the corolla-base; filament 0.8-1 mm long, 0.5-0.7 mm broad at base; anther 1.7-2.1 mm long, 0.4-0.6 mm broad, 0.4-0.5 mm thick, acute at the apex, cordate at the base. Ovary 1.5-2 by 1.3-1.6 mm, glabrous; stigma conical, with 5 low ridges. Fruit unknown.
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