DIPTEROCARPUS ALATUS Roxb. ex G. Don.

Diptercapus incanus  Roxb.
Family: Dipterocarpaceae

Bengali/vernacular name: Garjan, Silgarjan, Dhuli-garjan; Dholi-garjan, Mashkaliya-garjan, Harra-garjan (Chittagong).

Description of the plant:
A lofty evergreen tree with tall cylindric bole and comparatively small crown. Leaves 9-21 cm long, elliptic, or ovate-elliptic, acute or shortly acuminate, coriaceous, nearly glabrous above and stellate-pubescent beneath. Flowers subsessile, in simple, 3-7-flowered, axillary racemes, petals 1.5-2.5 cm long, stellately pubescent.  Fruit-belly 1.8-2.5 cm long, wings 7.5-12.5 mm long.


DIPTEROCARPUS ALATUS
DIPTEROCARPUS ALATUS


Using information:
Bark is considered tonic, depurative and prescribed in rheumatism. The oleo-resin of the bark is applied externally in gonorrhoea and ulcerated wounds (Yusuf et al. 2009).

Chemical constituents:
Plant contains essential oil, 2 sesquiterpenes of eudesmane series (Asolkar et al., 1992).

Distribution:
In the forests of Chittagong and Cox’s Bazar.