Tiokerere is a flax plant whose roots travel between four lakes. Three are on the Tararua mountains and the forth is at Te Tirohanga a Hinetearorangi ki te Motu a Kapiti which is otherwise known as the Hidden Lakes north of Masterton. Two of the mountain lakes are those known as Hapuakorari where one is on the eastern side and one on the west. The third lakes name and location have been lost for now.
Tupuna would say not to cross or stamp on the root of Tiokerere or else you were asking for trouble.