Wild Roots (மலை வள்ளி கிழங்கு) it is being consumed as main food by mountain people's in tamilnadu
Various hill tribes are aware of this tuber,It is considered as their essential food, It is considered very nutritious and medicinal for them. These are available only once a year and are eaten boiled and mixed with honey.
This type of tuber is very rare and grows as a thorny vine above and a tasty tuber below.