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Description |
Geographic Range [top]
Range Description: Dioscorea wallichii is distributed from India to China and to Peninsula Malaysia (China, Assam, Bangladesh, Myanmar, Thailand).
Countries occurrence:
Native:
Bangladesh; China; India; Malaysia (Peninsular Malaysia); Myanmar; Thailand
Upper elevation limit (metres): 1300
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: D. wallichii is a common species found in forests and in disturbed habitat.
Current Population Trend: Stable
Additional data:
?Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: D. wallichii is a climbing tuberous geophyte which grows on various large shrubs or trees in mixed deciduous forests, on mountain slopes, also occurs in disturbed areas along roadsides and margins of cultivated areas.
Systems: Terrestrial
Use and Trade [top]
Use and Trade: Tubers of Dioscorea wallichii are eaten after boiling and thorough washing.
Threats [top]
Major Threat(s): There are no major threats to this species.
The genus Dioscorea (the yams) contains a number of species exploited for economic purposes; these include for nutrition and materials for the pharmaceutical industry (for the production of sex hormones and corticosteroids). Other species are not exploited or are only cultivated locally on a small scale.
Conservation Actions [top]
Conservation Actions: There are no known conservation measures specifically for D. wallichii, but the species is currently known to occur within the protected areas network.
Citation: Contu, S. 2009. Dioscorea wallichii. The IUCN Red List of Threatened Species 2009: e.T165731A6103873. http://dx.doi.org/10.2305/IUCN.UK.2009-2.RLTS.T165731A6103873.en. Downloaded on 27 April 2016.
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