Venusaur

The Venusaur is a fictional species of Pokémon from the Pokémon series of video games. Bulbasaur is numbered 003 in the National Pokédex, making it the first Pokémon listed, and is a Stage 2 Pokémon (preceded by Bulbasaur until level 16 and then Ivysaur until level 32).

Venusaur is a grass/poison Pokémon. It usually weighs around 99.45 kilograms (221 lbs) and has a height of 2.01 meters (6'7").

Availability
The only way to get a Venusaur in any of the Pokémon games is to evolve an Ivysaur, and the only way to obtain an Ivysaur is to evolve a Bulbasaur. Therefore, the availability of Bulbasaur dictates the availability of Venusaur.

Name origin
"Venusaur" is probably a combination of Venus (as in Venus fly trap) and the Greek sauros, meaning lizard (as in "dinosaur").