Leaves: petiole 5-30 mm; blade broadly elliptic, 6.5-17 by 4-10 cm, 1.4-2 times as long as wide, apex emarginate, rounded, apiculate or shortly acuminate, base obtuse to cuneate; 7-10 pairs of secondary veins. Inflorescence 3-40-flowered, 3-10 cm long; peduncle short, sometimes partly fused with branch; delicate. Sepals ovate or narrowly elliptic, 3-7 by 1.5-2.5 mm, apex acuminate, reflexed or spreading. Corolla white, creamy, pale yellow or pale green; tube 6.8-10 mm long, widening at 3.5-5 mm; lobes 5-11 by 4-7 mm, ovate, apex obtuse to acuminate; pubescent outside except at the base, pubescent inside around and below stamen insertion. Stamens inserted 4-5.2 mm from corolla base, exserted for 5-7 mm; filaments 2.5-3.8 mm long; anthers 4-6 by 1-1.5 mm, sagittate base 1.2-1.5 mm long. Disk pubescent on top. Ovaries densely pubescent, 1-2 mm long; style and style head 6-9 mm long, densely pubescent. Fruit of somewhat flattened follicles, 15.5-16 by 2.3-2.5 cm. Seeds not seen.