Botanical Name : Tectona grandis Linn. f.
Family : Verbenaceae
Names in different Indian languages :
English : Teak
Hindi : Saguan
Kannada : Tega, jedi
Malayalam : Teku
Sanskrit : Sakha, bhumisakha
Tamil : Tekku
Telugu : Peddateku, adaviteku
Synonyms :
Shaaka, Bhuumisaha, Dwaaradaaru, Varadaaru, Kharachhada, Saagawaan, Saagauna
Jatus grandis (L.f.) Kuntze
Tectona grandis f. abludens Koord. & Valeton
Tectona grandis f. canescens Moldenke
Tectona grandis f. pilosula Moldenke
Tectona grandis f. punctata Moldenke
Tectona grandis f. tomentella Moldenke
Tectona theca Lour.
Theka grandis (L.f.) Lam.
Morphology :
Teak is a large, deciduous tree up to 40 m (131 ft) tall with gray to grayish brown branches. Leaves are ovate-elliptic to ovate, 15–45 cm (5.9–17.7 in) long by 8–23 cm (3.1–9.1 in) wide, and are held on robust petioles that are 2–4 cm (0.8–1.6 in) long. Leaf margins are entire.
Fragrant white flowers are borne on 25–40 cm (10–16 in) long by 30 cm (12 in) wide panicles from June to August. The corolla tube is 2.5–3 mm long with 2 mm wide obtuse lobes. Tectona grandis sets fruit from September to December; fruits are globose and 1.2-1.8 cm in diameter. Flowers are weakly protandrous in that the anthers precede the stigma in maturity and pollen is shed within a few hours of the flower opening.[9] The flowers are primarily entomophilous (insect-pollinated), but can occasionally be anemophilous (wind-pollinated)
Uses :
expectorant, anti-inflammatory, antibilious, anthelmintic
Chemicals :
naphthalene , triterpenic, hemi-terpenic compounds, tectoleafquinone, tannin, lauric, myristic, palmitic, stearic, oleic, linolenic, arachidic acids