Which character is the Tangrowth who studies Pokopia’s environment?

Professor Tangrowth is the Tangrowth who studies Pokémon Pokopia's environment.

In the story, Ditto meets Tangrowth after entering the abandoned world. Tangrowth goes by the name Professor Tangrowth and has taken responsibility for investigating the damaged environment and the mystery of why humans and Pokémon disappeared.

The character helps frame the game's restoration work as more than simple decoration. As Ditto rebuilds habitats and helps Pokémon recover, Professor Tangrowth provides context about the world and its history. The professor is therefore a story character rather than one of the human researchers traditionally associated with the main Pokémon series.

The name can be confused with Professor Oak or other Pokémon professors because those characters guide players in many earlier games. Professor Tangrowth is different: the character is a Pokémon, specifically a Tangrowth, and the title is part of the character's in-game name.