Saurauia tristyla DC

(Latin for 'three styles')

Saurauia nudiflora var angustifolia Craib
Saurauia oldhamii Hemsl.
Saurauia tristyla var. hekouensis C.F. Liang & Y.S. Wang
Saurauia tristyla var. oldhamii (Hemsl.) Finet & Gagnep.

Mid-canopy tree up to 31 m tall and 59 cm dbh. Young twigs and leaves densely covered with scales. Stipules absent. Leaves alternate, simple, penni-veined. Flowers ca. 8 mm in diameter, white, placed in bundles on the branches, with conspicuous yellow stamens. Fruits ca. 7 mm, dry capsules filled with many small seeds, calyx persistent.

Mainly in undisturbed mixed dipterocarp and montane forests. In secondary forest usually present as a pre-disturbance remnant tree. Growing along rivers, on hillsides and ridges, up to 2000 m altitude (26% of collections from 0-500 m, 3% from 500-1000 m, 32% from 1000-1500 m, and 39% from 1500-2000 m).

Sumatra, Borneo (Sabah, East Kalimantan), Sulawesi, Moluccas and New Guinea.