Bayleef (Japanese: ベイリーフ Bayleaf) is a Grass-type Pokémon.

It evolves from Chikorita starting at level 16 and evolves into Meganium starting at level 32.

Bayleef resembles a pale yellow sauropod dinosaur or a lizard. A large leaf shaped like a scythe protrudes from its head. Curled leaf-like growths, stated to be buds with small tree shoots inside, sprout in a ring around its neck. It has red eyes, a short, blunt snout, and a short, pointed tail. There is one large toenail on each of its four feet.

The aroma wafting from the leaf-like growths around its neck has a spicy scent, and exhibits various beneficial effects on itself, nearby people, or Pokémon who inhale it. The fragrance has a combination of energizing, stimulating, and healing effects. Bayleef can be rarely found in grasslands among other Bayleef and its evolutions.