Treelet up to 2 m high. Leaves 1-pinnate, leaflets 7-9. Petiole 8-16 cm; stipules a narrow wing 3-5 mm broad, 3-8 cm long, scar narrow, similarly long; rachis 10-25 cm. Leaflets elliptic to elliptic-lanceolate, (10-)15-25 (-30) by (3-)5-9 (-12) cm, glabrous; pearl glands globular-depressed, sparse; margins shallowly serrately toothed; apex acuminate; base cuneate; nerves 8-13 pairs, midrib conspicuously constricted at point of junction of lateral nerves; lamina pallid in region of midrib in some collections; petiolules up to 25 mm. Inflorescences 4-8 cm long, somewhat contracted, few-flowered, pubescent; bracts deltoid to narrowly triangular, up to 5 by 2 mm, early caducous; peduncle up to 2 cm, main branches 3-6, ultimate branches reduced in number. Flowers 5-merous, white. Calyx 4 by 6 mm, conspicuously inflated around the corolla tube, in young flowers enclosing the corolla, lobes c. 2 by 2 mm, often ill defined. Corolla tube + staminodial lobes 6 mm; corolla lobes 3-4 by 2½-3 mm. Staminodial tube 4½-5 mm long; upper part joined to corolla for 1½-2¼ mm, free part 1¾-2 mm long, lobes shallowly retuse, sinuses shallow; upper part 1 mm. Filaments 2½ rnrn, anthers 2½ mm. Ovary usually 6-celled, style 2 mm. Fruit 15-20 mm ø, deeply grooved between segments; seeds usually 6, 6 by 5 mm, rumination outline simple, endosperm simply ruminate.
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