Taradi, or Himalayan yam, is a little-studied plant which appears above the ground as a low vine, but underground bears long, convoluted tuber growth stretching sometimes as deep as 2 metres. It is native to Palampur in northern India. So far it has received very little attention from botanists, and its species has not even been determined or named, although its morphology and life patterns show it to belong in the Dioscorea genus, so it has been referred to as Dioscorea spp..
The tubers are edible, and are eaten during traditional religious festivals. Taradi can be roasted or cooked, and used as a vegetable. Digging and selling taradi is a major source of income in the region.  
- Singh, K.K. and Kaushal Kumar. Ethnobotanical wisdom of Gaddi tribe in Western Himalaya. 2000. p.18.
- Food and Agriculture Organization. Plant Breeding News, Edition 193. 30 August 2008. at 2.02.
- Jain, S.K., from Ethnobiology in human welfare. 1996. p.385.
- Dr. Chiranjit Parmar, in article "Taradi", The Heirloom Gardener, 2007.
- FAO Plant Breeding Newsletter, 1.01
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