Ivysaur is the grass-type Pokemon available to Pokemon Trainer. Squirtle and Charizard are the others. Players can cycle through the three Pokemon with their shared Down+B move, going from Squirtle to Ivysaur to Charizard then back to Squirtle.
Related ThreadsLooking for a Friend Safari with Bulbasaur, Ivysaur or Venasaur - last post by @ Nov 8, 2013
Ivysaur-What the heck? - last post by @ Oct 28, 2004