Kona Tree

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-Rush 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.