Kona Tree

The Kona Tree is a tree located in Jaya and other areas. It first appeared in Chapter 288 and Episode 187. Within this tree is a substance known as Conine, which is necessary to cure the Tree Fever disease. Although the Conine was never show in the manga, it first appeared in the anime in Episode 188.

Trivia

 * In real life, "Conine" (also called "Coniine") is a poisonous alkaloid found in the Yellow Pitcher Plant and can be fatal to humans and livestock.
 * Kona is the name of a district on themain island of Hawaii.