Parts glabrous but for densely puberulent inflorescence, fruit calyx tube, sparsely puberulent fruit calyx lobes, and densely pubescent ovary. Twig c. 3 by 2 mm, +-compressed apically, slender, much branched, blackish, minutely pale lenticellate; stipule scars oblique. Buds to 8 by 2 mm, lanceolate-falcate, slender, drying black; stipules unknown. Leaves 5.6-11 by 2.5-6 cm, narrowly elliptic, coriaceous; margin somewhat undulate; base cuneate; acumen to 1 cm long, slender; nerves 6-8 pairs, steeply ascending, slender and hardly elevated beneath; tertiary nerves densely scalariform, hardly elevated beneath, set vertically to the midrib; petiole 1.4-2.2 cm long, slender. Inflorescence to 7 cm long, simple. Flower unknown. Fruit subsessile; calyx tube to 15 by 10 mm, narrowly obovoid, with 5 sharp undulating ridges or narrow, to 2 mm wide, wings; 2 longer lobes to 6.5 by 1.5 cm, spatulate, obtuse, c. 5 mm broad at base; 3 shorter lobes to 5 by 4 mm, elliptic, subrevolute.