Tree 25-35 m high. Leaves 4- or 5-jugate; petiole 2.5-3 cm and rachis 7-12.5 cm long, pubescent when young, minutely puberulous, glabrescent. Stipules early caducous. Inflorescences paniculate, up to 30 cm long, lateral branches up to c. 7 cm long, both rachis and branches densely puberulous; bracts ovate to lanceolate, 3-4 mm long, puberulous on both surfaces; pedicels very short. Petal slightly obovate-oblong or elliptic, 6-7 by c. 2 mm; outside densely puberulous and inside glabrous; margin villose. Stamens: united basal parts of the filaments very short; free filaments up to c. 10 mm, hairy; anthers perhaps all fertile, various in size, largest, ovoid-ellipsoid, c. 3.5 mm long, the others smaller. Ovary subsessile or very shortly stipitate, subrhomboid, c. 7 mm long, densely woolly, except with somewhat shorter hairs in the centre, 3-5-ovuled; style up to c. 12 mm, recurvate, glabrous or sparsely hairy in the basal part; stigma obscure. Seeds suborbicular, compressed, c. 1.5 cm (c. 2 cm when fresh) in diam., blackish, smooth, on top of a large aril; aril larger or slightly smaller than the seed, wider than high, up to 1.7 cm (up to c. 2.5 cm when fresh) wide, wrinkled when dry.
Asia-Tropical, Banjumas present, Preanger present
Malesia: Java (Preanger and Banjumas).
According to De Wit (I.e.: 57), the present species holds a rather isolated position in the genus because of the absence of the uppermost free staminodium and the excessive resin excretion of the spines of the pods.