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Plant Name        Dioscorea hispida           

                Common name:              

                Marathi:               Baichandi, Bhul kand, Dukar kand.        

                English:                 Asiatic bitter yam, Intoxicating yam.     

               

                               

Identification guide

General

Dioscorea hispida is a twining vine, arising from tuberous roots, and reaching a length of several meters.

Stems

Stems covered with few or many short, sharp spines.

Leaves

 Leaves are 3-foliolate, the leaflets 12 to 20 cm long, somewhat hairy, the lateral ones oblique, oblong-ovate, the terminal one equilateral, oblong to oblong-obovate.

Flowers

Flowers are small; unisexual male flowers with 6 stamens; female flowers similar to males, 3-winged, 3-celled, ovules 2 in each cell.

Fruits

Fruit is a capsule, oblong and about 5 cm long. Flesh and sap of tubers are yellowish.

                               

Habit / Habitat

Dioscorea hispida is native to India, South east Asia, China and New Guinea. Growing wild, chiefly in thickets and forests at low and medium altitudes throughout the Philippines.  

                               

Occurrence

Global Distribution:    South and South East Asia

 

Indian distribution: State - Kerala, District/s: Palakkad, Kasaragode, Kollam, Idukki, Pathanamthitta, Malappuram, Thrissur, Wayanad.           

                               

Edible parts:

Used by tribal community in Jawhar:     Fruits

                               

Method of consumption

Jawhar tribal:    Fruits boiled and cooked

Other Recipe

Despite known toxicity, in Thailand, where it is referred to as Kloi, tubers are used to make a dessert called Kao Nuew Kloi.

– In Kerala, India, tuberous herb cooked with salt, chili, tamarind and tumeric powder and used as curry

 

                               

Nutritional and medicinal information

Tuber, relieves abdominal spasms and colic; fry in vegetable oil, topically apply to remove pus from wounds, clears melasma. Toxic substances such as dioscorine were found in tubers which cause palpitations, nausea, vomiting, throat irrita­tion, sweating, blurred vision and unconscious­ness.          

                               

Propagation and Storage

The climbers prefer a sunny situation on dry soil. The substrate should be gritty-sandy soil. They tolerate temperatures only above at least 1°C 

                               

Other uses

Bleaching: Yellow juice from the flesh and sap of tubers is used for bleaching clothes and abaca fibers.

  • Poison: Juice of tubers used in criminal poisoning. Also, used as an ingredient together with Antiaris toxicaria in the preparation of arrow poisons.
  • Livestock: Tubers used as cure for myiasis of the scrotum in carabaos.

                               

Classification

Kingdom:            Plantae

Division:              Spermatophyta

Sub-division:      Angiospermae

Class:                    Monocotyledonae

Series:                  Epigynae

Family:                Dioscoreaceae

Genus:                 Dioscorea

 Species:              hispida               

                               

References        

 

http://www.plantnames.unimelb.edu.au/Sorting/Dioscorea.html

http://indiabiodiversity.org/species/show/243782

http://findmeacure.com/2012/01/26/dioscorea-hispida/

http://en.hortipedia.com/wiki/Dioscorea_hispida                          

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