Cleistanthus erycibifolius Airy Shaw, Kew Bull. xx (1966)
Latin for 'with whitish powdery leaves', referring to whitish powdery fungus spores.

Description
Sub-canopy tree up to 30 m tall and 37 cm dbh. Stipules small. Leaves alternate, simple, penni-veined, whitish below, venation inconspicuous. Flowers ca. 1.5 mm diameter, greenish, placed in small bundles in leaf axils. Fruits ca. 10 mm long, green-brown, dehiscent, 3-lobed capsules.

Ecology
In undisturbed mixed dipterocarp forests up to 100 m altitude. Usually on sandy ridges. In secondary forests usually present as a pre-disturbance remnant tree.

Distribution
Peninsular Malaysia, Borneo (Sabah, East-Kalimantan), Philippines.

Local names in Borneo
Ambis burung, Kaliwaju gunung, Kerankajan.