Leef

Leef is the beta design for the Pokémon Chikorita. There is little to no differences between the two. It is #152 in the Pokedex.

Leef was originally the name of Chikorita, the grass starter Pokemon. It's evolutions were Blossomite and Blossomole.

Evolutions
Blossomole is the evolved form of Leef.

Blossomite is the evolved form of Blossomole.