Aquilaria beccariana van Tiegh, Ann. Sc. Nat. Bot. 7, 17 (1893)
Named after O. Beccari [1843-1920], an Italian botanist.

Synonyms
Aquilaria cumingiana var. parviflora Airy Shaw, Aquilaria grandifolia Domke, Gyrinopsis grandifolia (Domke) Quis.

Description
Sub-canopy tree up to 28 m tall and 91 cm dbh. Stipules absent. Leaves alternate, simple, penni-veined with wavy horizontal tertiary venation, glabrous. Flowers ca. 4 mm diameter, white-yellow, with long corolla tube, placed in panicles. Fruits ca. 28 mm long, green-yellow, pod-like capsule. Seeds with long, caterpillar like appendage (for dispersal?).

Ecology
In undisturbed mixed dipterocarp, keranga and sub-montane forests up to 1000 m altitude. Often along rivers and streams and on ridges. On sandy to clay soils. In secondary forest usually present as a pre-disturbance remnant.

Uses
The fungi infected wood is used to produce a valuable incense (gaharu).

Distribution
Peninsular Malaysia, Sumatra, Borneo (Sarawak, Brunei, Sabah, West- and East-Kalimantan).

Local names in Borneo
Aru, Engkaras, Engkeras, Enkaran, Gaharu, Karas, Kekaras, Mebuaan.