Large tree. Leaf bud, panicle, stipule outside, petiole, and very young twig caducous pubescent. Twig 2-3.5 mm ø apically, frequently rugulose; stipule scar short, obscure. Bud 3-4 by 2 mm, conical, acute. Stipule c. 8 by 3 mm, linear to deltoid, subacute. Leaves 6-12 by 3.5-3 cm, elliptic to slightly obovate; base obtuse; acumen broad, 0.5-1.0 cm long; nerves (10-)13-18 pairs, curved, at 90° at the base, c. 40° at the apex; tertiary nerves densely scalariform, at 90° to nerves; petiole 1-1.5 cm long, c. 1 mm ø, rather slender. Panicle to 22 cm long, terminal or axillary, terete, lax; singly or doubly branched, branchlets to 10 cm long, bearing to 6 flowers; bracts and bracteoles unknown. Flower bud to 9 by 5 mm, narrowly ovoid, obtuse. Calyx puberulent outside, glabrous within; lobes equal, narrowly deltoid, obtuse. Petals large, narrowly ovate, acute, puberulent on parts exposed in bud. Stamens 15, in 3 subequal verticils; filaments c. 1.5 x length of anther, slender, tapering gradually; anthers oblong, tapering; appendage to connective c. 3 x length of anther, reaching 2/3 length of style. Ovary small, ovoid, puberulent; style stoutly filiform, c. 3 x length of ovary, glabrous in the apical 1/3, otherwise puberulent, shallowly trifurcate. Fruit pedicel stout. Calyx glabrous; 3 longer lobes to 12 by 1.5 cm, narrowly spatulate, obtuse, hardly tapering, slightly broadening at the thickened saccate base; 2 shorter lobes to 6 by 0.5 cm, unequal, linear, similar at base; base of calyx obconical, tapering into the pedicel. Nut to 2 cm long, ovoid, glabrescent; style remnant c. 6 mm long, slender.
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