Trees to 9(–13) m tall, girth to 25(–40) cm; outer bark smooth and grey; inner bark pale yellow. Leafy twigs 1.5–3.5 mm thick, darkbrown to black-brown and densely lenticellate, glabrous to puberulous with occasional simple trichomes. Leaves 25–30 (–35) cm long, 2-jugate; petiole 4.5–9.5 cm long, 1.5–2(–2.5) mm thick, ± terete and slightly flattened adaxially near the very base, sub-densely lenticellate, very sparsely puberulous; petiolule ± terete, (of distal pair leaflet) 0.7–1.4(–2.4) cm long and 0.6– 1.2 mm thick. Lamina of distal pair leaflet (9–)l 1 — 16( — 19) by 4–6(–8) cm, of terminal leaflet 11–15(–19) by 5–8 cm, of basal leaflet 8–16 by 4–6(–8) cm, lateral and terminal leaflets elliptic (to obovate), basal leaflets ovate to elliptic, chartaceous to subcoriaceous, adaxial surface with all veins slightly or not at all prominent (in vivo and in sicco), abaxial surface with most veins slightly prominent (in vivo and in sicco) and surface glaucous (in vivo) except for on midrib and costae and (usually) intercostae, abaxial surface very sparsely to densely pubescent (to subtomentose) with ± erect simple trichomes; 7–9 (lateral and terminal leaflets) and 6–8 (basal leaflets) costae on either side of the midrib; glands conspicuous and dense and usually extending along either side of the costae also. Inflorescences in axils of undeveloped or fully expanded leaves near the shoot apex or lower down, 1–1.7 cm long at anthesis, each a tightly compact thyrse, branched to first (to second) order, first-order branches up to 4 mm long, peduncle sparsely lenticellate, all parts densely puberulous with simple trichomes. Flower hermaphrodite, not scented, just prior to opening cylindrical, 1.5–1.6 mm long, 1.2– 1.3 mm diam. Calyx 1–1.4 mm long, lobes c. 0.6 mm long. Petals 2.2–2.5 by 1–1.8 mm, glabrous on inside. Androecium cylindrical to slightly cask-shaped, c. 1.5 mm long, tubular for c. 1/5 of length; filament edges only pubescent, filament apex bifid with teeth c. 0.2 mm long; anthers 0.4–0.5 mm long and very short beaked. Disk c. 0.4 mm high. Style narrowly obconical, c. 0.5 mm long, c. 0.3 mm diam. at base, c. 0.5 mm diam. just below stigma. Stigma capitate with two lobes on top, c. 0.4 mm long (excl. lobes), c. 0.9 mm diam. at base, lobes c. 0.2 mm high. Fruit a 1-(or 2-) seeded capsule, longitudinally 4-winged (immature) to rhomboidal (in transverse section) to almost globose, 1.7–2.5 by 0.6–0.9 cm, green or glaucous in vivo, brown in sicco, puberulous with simple trichomes, pericarp 0.7–1 mm thick generally but up to 1.3 mm thick at the four edges, fibrous endocarp 0.13–0.18 mm thick, septum c. 0.18 mm thick between the two locules connected to pericarp at two opposite suture lines, capsule weakly septicidally dehiscent into 2 (or 4?) valves commencing at the distal end, the septum spliting into two membranes at dehiscence.
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