3503

5(1): Timber trees; Major commercial timbers

Eucalyptus deglupta Blume

This article should be read together with the article on the genus: Eucalyptus in the Handbook volume indicated above in this database.

Mus. Bot. Lugd.-Bat. 1: 83 (1849).

Eucalyptus multiflora Rich. ex A. Gray non Poir. (1854), Eucalyptus naudiniana F. v. Mueller (1886), Eucalyptus schlechteri Diels (1922).

Mindanao gum, deglupta (En). Indonesia: leda (general), galang (Sulawesi), aren (Moluccas). Papua New Guinea: kamarere. Philippines: bagras (general), banikag (Agusan), amamanit (Zamboanga). Vietnam: b[aj]ch d[af]n v[or] d[aaf]y.

The Philippines (Mindanao), Sulawesi, Seram, New Guinea and New Britain. Widely planted throughout the wet tropics.

Eucalyptus deglupta is one of the most important eucalypts of humid tropical regions and is a source of general-purpose timber, but it is also a major plantation tree for pulp production. The wood is also used for veneer and plywood, particle board, hardboard and wood-wool board. Eucalyptus deglupta is also used for reforestation and firewood.

A huge evergreen tree of up to 60(-75) m tall, bole generally of good form, 50-70% of the tree height, up to 240 cm in diameter, sometimes with buttresses of 3-4 m high, bark smooth, yellow, brown, and purple, but green after flaking, twigs square, often with 4 longitudinal wings; juvenile leaves opposite, ovate-lanceolate, adult leaves opposite, subopposite to alternate, held almost horizontal on branches, ovate to ovate-lanceolate, 7.5-15(-20) cm 5-7.5(-10) cm, rounded to acute or slightly acuminate, shortly petiolate; inflorescence compound, axial and terminal, umbels 3-7-flowered; flower buds globular to subclavate, apiculate, operculum hemispherical, broader than long, double, the outer one early caducous; fruit ovoid to club-shaped or globose, 3-5 mm 3-5 mm, with 3-4 very small valves. Eucalyptus deglupta prefers non-stagnant river flats with adequate soil moisture and grows best on deep, moderately fertile sandy loams but also on volcanic ash, pumice and gravel soils. It grows typically in pure stands from sea-level up to 1800 m altitude. The density of the wood is 390-810 kg/m³ at 15% moisture content but the wood of young provenances is lighter. See also the table on wood properties.

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[769]Whitmore, J.L., 1978. Bibliography on Eucalyptus deglupta Bl. Research Note No 17, Institute of Tropical Forestry. Forest Service U.S.D.A., Rio Piedras. 18 pp.

C.C.H. Jongkind

Jongkind, C.C.H., 1993. Eucalyptus deglupta Blume. In: Soerianegara, I. and Lemmens, R.H.M.J. (Editors): Plant Resources of South-East Asia No 5(1): Timber trees; Major commercial timbers. PROSEA Foundation, Bogor, Indonesia. Database record: prota4u.org/prosea