Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.
Chespin's name comes from the animal porcupine and the nut chestnut.
Chespin is the first Grass-type starter Pokémon that is not reptile-based but based on a mammal, in this case a rodent or a marsupial. Judging by its Japanese, English, French, German, Spanish, Italian and Korean name, it appears to be based on a porcupine.