DIOSCOREA ALATA L.

Family: Dioscoreaceae

Bengali/vernacular name: Chupri Alu, Mete Alu, Kamalu, Kham, Kham-alu.
Tribal name: Raing (Tanchangya), Subri Alu (Chakma).
English name: Yam, The Greater Yam, Asiatic Yam.

Description of the plant:
A large twinner, tubers roundish or oblong, white inside. Leaves mostly opposite, 7.5-18 cm long, broadly ovate, cuspidately acuminate, subhastately or deeply cordate. Capsule 2.5 x 3.8 cm, broader than long, of two semicircular flat lobes, retuse at the apex.


DIOSCOREA ALATA L.
DIOSCOREA ALATA L.


Using information:
The plant is used in constipation. Tubers are anthelmintic; useful in leprosy, piles, fever and gonorrhoea. Leaves are used in rash and itch (Yusuf et al. 2009).

Chemical constituents:
Tuber contains anthocyanins, steroidal glycosides, cholesterol, campesterol, β-sitosterol and stigmasterol, diosgenin, sapogenin, alkaloid and starch. It also contains a number of sterols and trans-crotonic, ferulic and palmitic acids (Ghani, 2003).

Distribution:
Cultivated throughout Bangladesh.