Family: Verbenaceae - Verbena family
Growth Habit: Tree
Bangla/Vernacular Name: Segun.
Tribal Name: Saccon (Chakma), Klapang (Khumi), Segun (Bawm), Segoon (Rakhaing).
English Name: Teak.
A large tree. Leaves elliptic or obovate. Flowers white, panicles erect. Fruit a nut.
Wood contains a resin, a little essential oil, fatty oil, fatty acids (stearic, palmatic, oleic and linoleic acids) and a quinine-like substance, tectoquinine(2-methylanthra-quinone). It also contains anthraquinones, naphthaquinones, quinones, different fatty acids, squalene, betulic acid, a triterpene (C30H48O5) and other terpenoids, sugars, polyisoprene, caouthouc-like substances occur predominantly in the lumen. Bark contains tannins. The skin-irritant lapachomone and the antioxidant tectol are present in the heartwood, which also yields a yellowish brown oil and 2-methylanthraquinone.
Leaves contain a number of quinones including a quinone having the formula, C19H14O6. Seeds contain a fixed oil containing chiefly stearic, palmitic, oleic and linoleic acids (Ghani, 2003). Root contain lapachol, tectol, dehydrotectol, tectoquinone, ß-lapachone, dehydro-a-lapachone and ß-sitosterol (Rastogi & Mehrotra, 1993).
A brown dye is prepared from the bark and used for dying the cotton thread used in hand weaving; the leaves are used as thatching material. Chakma also use the wood to make looms and shuttles for weaving (Chakma).
Timber is used as fuel and to prepare furniture and household materials (Khumi).
Timber is used for the construction of houses and also for wooden stairs for house (Bawm).
Bark infuses in water for 24 hours & the bark water is taken half cup twice daily for seven days for the treatment of leucorrhoea (Rakhaing).
Chittagong, Chittagong Hill Tracts, Cox's Bazar; occasionally cultivated to other parts of the country.
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