Tree, up to 20 m high, dbh up to 80 cm. Young parts with a short, dense, brown indumentum, glabrescent. Twigs 6-21 mm thick. Leaves (2-)4-5-jugate; petiole 7.5-35 cm long; petiolules 2-10 mm long; axes hairy, glabrescent. Leaflets elliptic to obovate (upper ones), 7.5-26 by 4-11 cm, index 1.7-3, herbaceous to thin-pergamentaceous; base symmetrical to slightly oblique, acute to rounded, short-decurrent; apex rather abruptly (or gradually) acuminate, acumen short to moderately long, acute to rounded; above slightly hairy on midrib (and nerves), beneath sparsely to densely hairy on midrib and nerves; midrib above sunken; nerves 1.2-4.3 cm apart, above flat or sunken; intersecondary nerves few, usually feeble. Infructescences axillary, 10-33 cm long, with few up to 6 cm long branches, hairy; bracts lanceolate, up to 2.5 cm long; pedicels in fruit up to 18 mm long. Flowers only known from remnants under the fruit. Sepals broad-elliptic to suborbicular, 6-8 by 4.5-7 mm, persistent or caducous. Disc uninterrupted, hairy. Stamens 7 or 8 (scars). Pistil 2-locular; style c. 4.5 mm long; ovules 2 per locule, the lower one with a long thin funicle, probably abortive. Fruits transversely broad-ellipsoid, c. 35 by 58 mm; base emar-ginate, stipe 1-2 mm long; apex emarginate to truncate; lobes erect, strongly inflated; wall thin woody, outside minutely pustulate and sulcate, densely hairy, glabrescent, inside very sparsely hairy. Seeds 1 per locule.
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