Tree up to 20-42 m by 66 cm, sometimes with buttresses and stilt-roots. Branchlets 6-7 mm thick, scurfy; pith with a peripheral cylinder of small vascular strands. Leaves 3-4-jugate, glabrous. Stipules subpersistent or more or less caducous, inserted ½-1½ cm from the base of the petiole, decurrent, oblique-obovate, 1.25-2 by 1 cm, rather stiff. Leaflets ovate to lanceolate, up to 22 by 10 cm, coriaceous; base slightly oblique, rounded to cordate; margin entire; apex rather abruptly, shortly and bluntly acuminate; nerves 10-15 pairs (angle 60-80°), moderately curved, more or less distinctly arching close to the margin. Inflorescences (female) remotely spicate, densely tomentose. Flowers: old female flowers known. Calyx 7 mm high, the lobes 1.5 mm; outside tomentose, inside appressed short-hairy, densest near base and margin. Corolla: petals 7.5 by 5 mm, outside densely appressed short-hairy in the upper half mainly along the midrib, inside glabrous, in vivo orange to red. Staminodes 6, inserted on the disk, c. 3½-4 mm long, glabrous. Disk adnate to the hollowed receptacle, free rim 0.5-¾ mm high, fleshy, glabrous. Pistil glabrous; ovary 3 mm; style 1.25 mm, thick; stigma globular, 1 mm ø. Infructescences terminal, small, with 1 or few fruits, rusty tometose; calyx flat, orbicular, up to 2½ cm diam., densely rusty tomentose when young. Fruits ovoid, 6 by 4 cm, glabrous; pericarp 0.5-0.75 cm thick, fibrous; pyrene smooth, rostrate at the apex, in cross-section rounded triangular; the lids 0.75 cm thick, very hard. Seeds 1-2.
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A medium sized tree which grows to 20 m high. It is 50 cm through the trunk. The small branches are 6-7 mm thick. The leaves have 3 pairs of leaflets. The leafy structures (stipules) at the base of the leaf stalk occur 1-1.5 cm from the base and are oval and stiff and tend to run down the stem. The leaflets are sword shaped and 11-18 cm long by 6-7 cm wide. The base is unequal and rounded while the tip ends bluntly. There are 10-12 veins which are somewhat curved. The fruiting branch occurs near the end of branches and has one fruit. The fruit are oval and 6 cm long by 4 cm wide. The stone is rounded triangular in cross section. There are 1 or 2 seeds inside. (It is somewhat similar to Canarium harveyi).
Primary and secondary forests up to c. 1250 m., once collected in young secondary forest at very low alt., Fr. in--10. Fig. 24.
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Primary and secondary forests at elevations up to 1,250 metres.
A tropical plant. They occur in forests at very low altitudes.
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