Durio oxleyanus Griffith

A fairly large tree up to 40 m tall, with bole branchless for up to 30 m and up to 100(-140) cm in diameter having buttresses up to 3 m high, bark surface very rough, deeply fissured, peeling off in long pieces, dark brown or dark rusty brown. Leaves broadly elliptical to oblong, 7-20 cm x 3-7.5 cm, densely covered with greyish stellate hairs below, scaly on veins. Flowers in irregular cymes fascicled on twigs or on older branches, petals c. 15 mm long, white or pale cream, stamens in bundles alternating with 4 free stamens. Fruit globose, up to 20 cm in diameter, outside greyish-green with large, stiff, broadly pyramidal, slightly curved spines.

D. oxleyanus flowers only at long intervals, like members of Dipterocarpaceae.

D. oxleyanus usually occurs especially on frequently flooded clay-rich alluvium.

D. oxleyanus usually occurs as an amergent in moist locations in lowland rain forest, especially on frequently flooded clay-rich alluvium.

Durian seed usually germinates rapidly, within a few days to a few weeks. The germination rates of D. oxleyanus for fresh seed is 85% (12 out of 14 seeds) in 9-36 days.

The Durio species of primary forest occur only scattered. In a 50 ha plot of lowland forest in Peninsular Malaysia only 10 trees of D. oxleyanus with a diameter more than 30 cm.

Food: The small aril around the seed is edible and sweet. Medicine: An extract from the bark is taken against malaria and grated seed is applied to ulcerations and wounds. Timber: The timber is used for planks in house building.