Irvingia malayana Oliv. ex
Benn., in Hook.f., Fl. Br. Ind. 1 (1875)
Latin for 'from Malaya', i.e. Peninsular Malaysia.
Irvingella harmandiana van Tiegh., Irvingella malayana (Oliv.
ex Benn.) van Tiegh., Irvingella oliveri (Pierre) van Tiegh., Irvingia
harmandiana (van Tiegh.) Pierre, Irvingia longipedicellata Gagnep.,
Irvingia oliveri Pierre
Emergent tree up to 59 m tall and 117 cm dbh. Stipules up to 30 mm long,
dropped early. Leaves alternate, simple, penni-veined, glabrous, often with
cordate leaf base. Flowers ca. 6 mm diameter, white-yellow, placed in panicles.
Fruits ca. 46 mm long, green-yellow, drupes.
In undisturbed mixed dipterocarp forests up to 600 m altitude. Usually on
hillsides and ridges with clay to sandy soils. In secondary forests usually
present as a pre-disturbance remnant.
The wood is used for heavy construction, knife handles and furniture. The
seeds are edible and also used to extract fat for soap, wax and candles.
Indo-China, Thailand, Peninsular Malaysia, Sumatra, Borneo (throughout the
Local names in Borneo
Asem pau, Batu, Euselu, Kayu batu, Kayu tulang, Kayu tulung, Kerangi,
Melenna gunung, Patok entilit, Pau kijang, Tengilan.