Interesting fact:

The Jinmenju is a very strange tree indeed – it’d have to be to spawn Exeggutor. The fruit of this fabled Japanese and Chinese tree is said to be actual human heads. Like, living ones. The faces of these fruit heads are said to be always smiling, or even seen laughing. Some of the heads laugh so heartily that they fall from their branches, crashing to the ground in fits of hysteria. Enough to make you never want to go outside again, huh?