Branchlets puberulent to glabrous. Leaves papery to coriaceous; petiole 0.7-2.2 cm long; blade ovate to elliptic, 2.9-10.5 by 1.2-5.3 cm, 1.6-2.5 times as long as wide, apex acuminate, base rounded to obtuse, 5-8 pairs of secondary veins, glabrous or sparsely puberulent on midrib beneath and in vein axils. Inflorescence of few-flowered terminal and axillary cymes; puberulent, 3.8-13 cm long; pedicels 0.7-3.5 mm long. Sepals oblong, imbricate, 1.7-2.7 by 0.5-1.3 mm, 1.4-4.4 times as long as wide, apex rounded, rarely obtuse, sparsely puberulent. Corolla white or greenish; corolla lobes valvate in bud; bud ovoid, open corolla urceolate; tube 1.2-1.8 mm long, 1.4-3.3 times as long as lobes; lobes triangular, 0.5-1.1 by 0.4-0.8 mm; pubescent outside and inside. Stamens inserted at 0.2-0.3 mm from corolla base which is 0.1-0.2 of tube length; filament 0.4 mm long; anthers 1.3 by 0.3-0.5 mm, 2.6-4.3 times as long as wide. Disk 5-crenate; 0.3-0.6 mm long. Ovaries 0.5-0.6 mm long; style and style head 0.9-1.3 mm long. Fruit stipitate, dagger-shaped, puberulent when immature, c. 5.3 by 1 cm. Seeds not seen.