Gluta wallichii (Hook.f.) Ding Hou, Blumea 24 (1978)

(named after Nathaniel Wallich [1786-1854], a Danish botanist)

Melanorrhoea maingayi Hook.f.
Melanorrhoea wallichii Hook.f.
Melanorrhoea woodsiana Scort. ex King
Swintonia elmeri Merr.
Swintonia obtusifolia Engl.

Emergent tree up to 51 m tall and 109 cm dbh. Stipules absent. Leaves alternate, simple, penni-veined. Flowers ca. 10 mm in diameter, white-yellow-pinkish coloured, placed in panicles. Fruits ca. 15 mm long, reddish, winged nut (wings formed by enlarged sepals).

In undisturbed dry or swampy forests, sometimes in peat swamp forest, rarely on limestone. Growing up to 1000 m altitude, but usually below 500 m. In secondary forests usually present as a pre-disturbance remnant.

The timber is regarded of superior quality, but a great objection against its use is that it retains its renghas-poison for a long time. The fruits are used to make dart poison.

Malay Peninsula, Sumatra and Borneo.

Local names
Borneo: Rengas; Renghas tjujung; Runggis.