Tree up to 60 m high and 80 cm in diam., buttresses flat, c. 1 m high, 1 m extending outward, 4 cm thick; young shoots prominently ferrugineous-pubescent. Leaf rachis up to c. 20 cm and petiole up to c. 10 cm; pinnae 3-5 pairs, up to c. 10 cm long. Stipules lanceolate to linear, c. 5 mm long, caducous. Inflorescences axillary, solitary, racemose, up to c. 27 cm long, rachis ferrugineous-pubescent; bracts triangular, c. 3 mm long, caducous; pedicels 10-12 mm. Petals suborbiculate, subreniform, or broadly obovate, 12-16 mm long and wide, much wrinkled, pubescent at the lower half outside and at the basal part inside, rounded and erose at the apex and margins, the basal 2-3 mm narrowed and claw-like, with distinct, palmate venation. Stamens: filaments 7-10 mm; anthers versatile, oblong, 4-4.5 mm long. Ovary sessile, elliptic or lanceolate, 4-6 mm long, densely pubescent, 4-ovuled; style 5-8 mm glabrous except the basal part; stigma peltate. Seeds elliptic, flat, c. 2 by 1 cm, longitudinally positioned in the pod.
Asia-Tropical: Borneo (Kalimantan present, Sarawak present), scattered present, widespread in Sabah present
Malesia: Borneo (scattered and widespread in Sabah, Sarawak, Kalimantan).