Guioa pleuropteris (Blume) Radlk., Sapind. Holl.-Ind. (1879)

Latin for 'winged stalks', referring to the winged leaf rachis.

Cupania griffithiana Kurz
Cupania pleuropteris Blume
Cupania pleuropteris var. apiculata Hiern
Guioa aptera Radlk.
Guioa forbesii Bak.f.
Guioa lasiothyrsa Radlk.
Guioa lasiothyrsa forma elmeri Radlk.
Guioa pleuropteris forma apiculata (Hiern) Radlk.
Guioa subapiculata Radlk.

Understorey tree up to 13 m tall and 29 cm dbh. Stipules absent. Leaves with winged rachis, alternate, compound, leaflets penni-veined, glabrous, whitish below. Flowers ca. 3 mm diameter, white-yellow, placed in racemes to panicles. Fruits ca. 15 mm diameter, green-reddish, 3-lobed, dehiscent capsules. Seeds with yellow-orange aril.

In disturbed forests or open sites in undisturbed mixed dipterocarp, coastal and sub-montane forests up to 1500 m altitude. Usually on alluvial sites and along rivers and streams, but also on hillsides and ridges. On clay soils. In secondary forests usually present as a pre-disturbance remnant.

The wood is used  for torches, axe handles, shafts for wagons and ploughs, and as fire-wood. A decoction of the roots is used against fevers, stomach-ache, and intestinal worms.

Burma, Indo-China, Thailand, Peninsular Malaysia, Sumatra, Borneo (throughout the island), Philippines.

Local names
Borneo: Tanggianuk.