Quercus sumatrana Soepadmo,
Gard. Bull. Sing. 21 (1966)
Latin for 'from Sumatra', where the species occurs.
Emergent tree up to 56 m tall and 160 cm dbh. Stipules ca. 7 mm long. Leaves
alternate, simple, penni-veined, glabrous, whitish below, with long petiole.
Flowers probably ca. 3 mm diameter, green-yellow and placed in racemes. Fruits
ca. 32 mm diameter, greenish, nut with basal cupule.
In undisturbed mixed dipterocarp to sub-montane forests up to 1400 m
altitude. On hillsides and ridges, but also along rivers. On sandy soils. In
secondary forests usually present as a pre-disturbance remnant tree.
Sumatra, Borneo (Sarawak, Sabah, East-Kalimantan).
Borneo: Mempening, Palele.