Bayleef is a quadrupedal, reptilian Pokémon that resembles a sauropod dinosaur. It has a pale yellow body, a long, well-defined neck, a pair of eyes with red irises, a short, rounded snout, and a stubby tail. Each of its feet have a single white nail. There are a series of tubular, tightly-curled leaves around its neck and a large, green leaf, bent backwards at the stem, sprouting from its forehead.

The leaves around its neck contain a small tree shoot inside, which emits a stimulant, spicy aroma. The fragrance has a combination of energizing, stimulating, and healing effects, which, as mentioned in Pokémon Sleep, makes even Pokémon that sleep near Bayleef feel invigorated. Bayleef can be rarely found in grasslands.

Evolution
Bayleef evolves from and evolves into Meganium.

(Source: Bulbapedia)