Woody climber to 8 m high. Branchlets densely brown pubescent. Leaves: petiole 10-25 mm long; blade elliptic to oblong, 6.2-17.5 by 2.7-6.6 cm, 1.8-3 times as long as wide, apex acuminate to caudate with a blunt tip, base obtuse to rounded or truncate, densely pubescent on midrib and sparsely so on secondary veins above, densely dark pubescent beneath, more so on midrib and veins, 12-18 pairs of secondary veins, 70-80° from midrib, slightly ascending, anastomosing into an intramarginal vein, tertiary venation reticulate. Inflorescence 3.2-4.6 cm long; peduncle 0.8-2.4 cm long, densely pubescent; pedicels 5-8 mm long, densely pubescent. Sepals 3.2-4 by 1-1.3 mm, 2.5-4 times as long as wide, densely pubescent. Corolla white or yellow; tube c. 10.5 mm long, pubescent around top of tube outside, glabrous inside; lobes c. 5.1 by 4.7 mm, 1.1 times as long as wide, obliquely orbicular, apex rounded, densely pubescent inside and outside. Stamens inserted c. 6.7 mm from corolla base which is 0.6 of tube length; filament c. 1.2 mm long; anthers c. 4.7 by 0.9 mm, tips at corolla throat. Ovary c. 2.2. mm high, pubescent; style c. 2 mm long; style head c. 1.1 mm long. Fruit pear-shaped, to 4.5 by 2.9 cm (but probably not completely mature), densely brown pubescent.