Kohila

Kohila is one of the vegetables widely eaten in sri lanka & kohila comes in many varieties., such as kiri kohila, guru kohila, wel kohila & goda kohila. The tuber of the kiri kohila is tastier & boils easily. Kohila tubers, roots and leaves are used as medicine, They contain a lot of fibers & known to be very cooling as a vegetable. Known as an Ayurvedic  vegetable in sri lanka & easy to find in any part of the country.

http://www.inside.lk/food/recipe/kohila-curry/