Chlorophyll
Boosts Speed in sunlight.
Pokémon with this ability
Oddish
Gloom
Vileplume
Bellsprout
Weepinbell
Victreebel
Exeggcute
Exeggutor
Tangela
Bellossom
Hoppip
Skiploom
Jumpluff
Sunkern
Sunflora
Seedot
Nuzleaf
Shiftry
Tropius
Cherubi
Tangrowth
As a hidden ability
Not in the game yet
No Pokémon can be obtained with its hidden ability yet, so these are listed for reference.
Bulbasaur
Ivysaur
VenusaurAs of v0.78.0 · engine be41c4ba