Bay Leaf first appeared in the competitive Chrysanthemum Leaf, in episode ep127. When Xiaozhi met it, it was still Chrysanthemum Leaf. Xiaozhi wanted to conquer it, and Chrysanthemum Leaf also wanted to challenge Xiaozhi. Intellectual challenge. This Chrysanthemum Grass Leaf refused to admit defeat until it was covered with bruises. Ash hurriedly sent it to the Pokémon Center. Later, when Team Rocket saw the fighting spirit of Chrysanthemum Grass Leaf, they also wanted to take it under Team Rocket's name and took it away by force. Later Xiaozhi rescued it, and it fell in love with Xiaozhi from then on.

In the electrical maze of Goodbye, Chrysanthemum Grass Leaf, it strayed into a power plant because of its anger. Xiaozhi went in to find it, and later evolved into a bay leaf to protect Xiaozhi.

On the eve of the fierce battle! In Xiaozhi's Pokémon Collection!!, Xiaozhi teleported it and several other Pokémon back first.

It appears again in My Dream, Pokémon Master!!, in a photo of Ash and other Pokémon.