3875

5(1): Timber trees; Major commercial timbers

Tectona grandis L.f.

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

Suppl. pl: 151 (1782).

Tectona theka Lour. (1790).

Teak (En). Teck (Fr). Indonesia: jati (general), deleg, kulidawa (Java). Philippines: djati (Sulu), dalanang (Panay Bisaya). Burma: kyun. Laos: sak. Thailand: sak (general), mai-sak. Vietnam: c[aa]y t[ees]ch, gi[as] t[ij].

Tectona grandis occurs naturally in peninsular India, Burma, Thailand and Laos. It was probably introduced to Java several hundred years ago and now occurs more or less naturally. It is cultivated on a large scale both inside and outside the Malesian region.

As given for the genus.

A medium-sized to large tree up to 50 m tall, bole straight and branchless for up to 20(—25) m, with a diameter up to 150(—250) cm, sometimes fluted or with low buttresses at base, bark surface with longitudinal cracks, greyish-brown, inner bark with red and sticky sap; leaves broadly ovate, (11—)20—55 cm (6—)15—37 cm (but much larger on suckers), stellate-floccose; inflorescence about 40 cm 35 cm; flowers 3—6 mm long, calyx campanulate, corolla white with pink on the lobes; fruit enclosed by an inflated calyx. Several morphological forms have been distinguished, principally by leaf characters. Tectona grandis generally occurs in deciduous forest on fertile, well-drained soil up to 1000 m altitude. The density of the wood is (480—)610—750(—850) kg/m³ at 12% moisture content. See also the table on wood properties.

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M.S.M. Sosef

Sosef, M.S.M., 1993. Tectona grandis L.f.. 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