[[File:Tectona grandis_rad.jpg|thumb|wood in radial section]]
[[File:Tectona grandis xs macro J. Ilic.jpg|thumb|transverse surface of wood]]
<big>''[[Tectona grandis]]'' L.f.</big>
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== Description ==
*Deciduous medium-sized to large tree up to 40(–50) m tall; bole generally straight and branchless for up to 20 m, up to 150(–200) cm in diameter, at base fluted or with low buttresses; bark longitudinally fissured and finely scaly, grey to brown; crown rounded, open; young branches tetragonal, rusty brown hairy. *Leaves decussately opposite, simple and entire; stipules absent; petiole 2.5–5 cm long, hairy; blade broadly ovate to elliptical-ovate or obovate, 20–60(–100) cm × 15–35(–50) cm, cuneate at base, acuminate at apex, thinly leathery, glabrescent above, hairy and scabrous below, pinnately veined. *Inflorescence consisting of cymes arranged in a large terminal panicle up to 70 cm long. *Flowers bisexual, regular, 5–7-merous, small, 3–6 mm long; calyx shortly lobed, persistent; corolla with a short tube and longer, patent or reflexed lobes, white with pink on the lobes; stamens inserted at the base of the corolla tube; ovary superior, ovoid, 4-celled, style slender, stigma 2-lobed. *Fruit a globose drupe 1–1.5 cm in diameter, densely hairy, usually 1–2-seeded, enclosed by the accrescent calyx. *Seeds ovoid, c. 6 mm × 4 mm, without endosperm. *Seedling with epigeal germination; cotyledons with a notched apex.
== Other botanical information ==
*Rays: 97: ray width 1–3 cells; (98: larger rays commonly 4- to 10-seriate); 104: all ray cells procumbent; (106: body ray cells procumbent with one row of upright and/or square marginal cells); 115: 4–12 rays per mm.
{{right|(N.P. Mollel & P. Baas)}}
== Growth and development ==