Liana, younger branches stellate-hirsute, older ones with longitudinal cork-ridges. Leaves elliptic-oblong to oblong, 6-14 by 3-8 cm, 6-7-nerved, obtuse, often slightly acuminate at the apex, obtuse at the base; glabrous, with slightly prominent midrib and faintly prominent nerves and venation above; densely stellate-hirsute on midrib and nerves, glabrescent on nerves, glabrous on the intervenium, with sharply prominent nerves and slightly prominent venation beneath. Petiole 8-15 mm. Inflorescences axillary, near the end of the branches sometimes passing into terminal, (2½-)4-10 cm, (10-)25-80-flowered. Pedicel 1-4 mm. Sepals 1 & 2 orbicular, 2.5 by 2.5 mm, 4 & 5 transverse-oval, 2.2 by 2.7 mm, densely stellate-hirsute outside (hairs with 5-8 subequal, up to 200 µ long branches). Corolla 6 mm, tube 2 mm; midpetaline field 2.5 by 1.8 mm, rather densely stellate-hirsute (hairs with 3-5 branches, usually one stronger and longer, up to 450 µ long); lobules 2 by 2½-3 mm, without distinct venation, crenulate at the margin. Stamens inserted ½ mm above the corolla-base; filament 0.8 mm long, 0.4 mm broad at the base; anther 1.2 mm long, 0.7 mm broad, 0.4 mm thick, acuminate (sterile acumen 0.5 mm) at the apex, cordate at the base. Ovary 0.7 by 1.2 mm, lower half glabrous, upper half slightly stellate-hirsute; stigma conical, with 5 more or less distinct ridges. Fruit ellipsoid, 18 by 10 mm, glabrous except few hairs near the apex. Cotyledons plain.
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