Ivysaur

Ivysaur is the Seed Pokémon. It evolves from Bulbasaur at level 16, and evolves into Venusaur at level 32. Ivysaur is a dual Grass/Poison type.

Biology
Ivysaur resembles a toad or a dinosaur. Ivysaur has small fangs and its skin is a bit bluer than Bulbasaur's. On its back, there is a big pink flower bud with green leaves extending from it and has blue spots. Ivysaur has reddish-purple eyes and three claws coming out of each of its legs. Ivysaur is 3'03" feet tall and weighs 28.7 pounds. Ivysaur is a quadrupedal Pokémon that has blue-green skin with darker patches. On top of its head are pointed ears with black insides and it has narrow red eyes. Ivysaur has a short, rounded snout with a wide mouth and two pointed teeth in its upper jaw. Each of its feet has three claws on them. The bulb on its back has bloomed into a large pink bud. A short brown trunk surrounded by leafy green fronds supports the bud.

The weight of the plant prevents Ivysaur from running fast and standing on its hind legs and forces its legs to grow sturdy. When its flower is ready to bloom, it gives off a distinct, strong sweet-smelling aroma and starts swelling. Ivysaur will also start spending more time in sunlight in preparation for its upcoming evolution. Exposure to sunlight adds to the strength of both Ivysaur and its plant. Ivysaur's natural habitat is plains.

May's Ivysaur
May's Bulbasaur evolved into an Ivysaur sometime after The Right Place and the Right Mime. It further evolved into a Venusaur prior to Pruning a Passel of Pals!.

Shauna's Ivysaur
Shauna's Bulbasaur was revealed to have evolved into an Ivysaur in Tag Team Battle Inspiration!.

Other
In Bulbasaur's Mysterious Garden, multiple Ivysaur evolved from a group of Bulbasaur during an evolution ceremony.

In Friends to the End, Assunta's Ivysaur battled and defeated Ritchie in the Indigo Plateau Conference.

In Putting the Air Back in Aerodactyl!, Crystal's Ivysaur was used to attack Butch, Cassidy, and their Pokémon as they were trying to steal an Aerodactyl on Sayda Island. With Ivysaur's assistance, Aerodactyl was able to send Butch and Cassidy blasting off.

In Judgment Day!, Jimmy's Ivysaur was targeted by Team Rocket in one of their schemes, but it was rescued by Jimmy's newly-evolved Blastoise.

In Ivysaur's Mysterious Tower!, multiple Ivysaur and Bulbasaur traveled to a Gym that was under construction in Vermilion City. Ash and Goh, who were investigating the outbreak, followed them to the Gym and realized the Ivysaur needed to go there to absorb the sunlight necessary to evolve into Venusaur. The Seed Pokémon eventually accomplished this task. They reappeared in a flashback in Getting More Than You Battled For!.

Minor appearances
In A Chansey Operation, an Ivysaur was one of the injured Pokémon brought to the clinic.

In The Ultimate Test, the Pokémon League entrance exam instructor provided his students an Ivysaur and other Pokémon for the final portion of the exam. James attempted to steal it.

In The Power of One, an Ivysaur sensed the disturbance caused by Lawrence III.

Multiple Ivysaur appeared in the opening sequence of Destiny Deoxys.

An Ivysaur appeared in a flashback in Weekend Warrior, under the ownership of Jeremy. It is now a Venusaur.

In Playing the Performance Encore!, a Coordinator's Ivysaur participated in the Battle Stage of the Daybreak Contest along with a Togetic.

In I Choose You!, Pikachu met a Trainer's Ivysaur at a Pokémon Center while Ash was calling to his mother. Pikachu proceeded to make faces at it.

In A Dream Encounter!, an Ivysaur starred in a video advertising Aether Paradise, where it resides and is studied. It reappeared in Deceiving Appearances! and Don't Ignore the Small Stufful!.