Parts glabrous but for pubescent inner surface of stipules. Twig c. 2-3 mm ø apically, terete, much branched; stipule scars slender, elevated but not prominent. Bud to 14 by 3 mm, slender, acute. Stipule to 4.0 by 0.6 cm, linear, caducous. Leaves 5.5-16 by 2.5-7.5 cm, narrowly elliptic to obovate; base narrowly obtuse; acumen to 8 mm long; nerves 8-10 pairs, straight, slender but prominent beneath, at 30° to 50°; tertiary nerves remotely subscalariform; midrib ± applanate above, stout, prominent, terete beneath; petiole 1.6-3 cm long, slender, geniculate. Raceme to 6 cm long, terete to somewhat compressed, smooth, unbranched, bearing to 4 flowers. Flower calyx and corolla typical. Stamens 15; filaments short, compressed, anthers narrowly oblong; appendage to connective c. 1/2 length of anthers, filiform, tapering. Ovary small, ovoid; stylopodium columnar, tapering, pubescent, ending in a short glabrous style. Fruit calyx and pedicel glabrous. Pedicel to 3 mm long, c. 1 mm ø. Calyx tube to 3 by 1.2 cm, fusiform, bearing 5 wings, each to 7 mm wide, broadest in the distal half, incrassate; 2 longer lobes to 11 by 2.7 cm, oblong, tapering to an obtuse apex, c. 5 mm broad above the tube; 3 shorter lobes to 8 by 8 mm, broadly ovoid, obtuse, somewhat recurved. Nut narrowly ovoid, densely buff pubescent; style remnant to 8 mm long, filiform.
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