Treecko is a Grass-type starter Pokemon from the Hoenn region. In the anime, Ash Ketchum caught a Treecko after helping him save his old tree home from dying. It later evolved into a Grovyle and then into a Sceptile. Queen Elsa also owned a Treecko after she and Anna found it locked in a cage on the streets of Arendelle. But after hearing that it was abandoned by an abusive trainer who didn't care for it and wanted no need for it, Elsa decided to keep Treecko and raise it as one of her Pokémon.