Victreebel

Victreebel is a massive, fierce looking Pokemon. It is the evolved form of Weepinbell. It can only be evolved if someone uses a Leafstone on a Weepinbell. It is a dual Grass/Poison type with a mouth big enough to swallow anyone whole.

James had a Victreebel that always liked to chop down on James' head repeatedly as a running gag in the Pokemon anime.