Êtarka

Etarka is a whitepaste prepared from the  roots of  the vandar, a potato relative native to  temperate freshwater  coasts and  wetlands. Etarka is prepared by boiling vandar  roots to  soften them, then grinding them into  paste with  a mortar  and pestle. Etarka causes slow death by destroying the  circulatory system,  beginning  at  its point of entry. Raw vandar roots have the same effect.