All i know that weepinbell can evolve with the leaf stone and it turns into a victreebell
Exeggcute, Weepinbell, Gloom.
Weepinbell evolves at any point since it evolves as soon as you use a Leaf Stone on it.
Exeggcute evolves when you use a leaf stone on it.
Gloom
a grass Pokemon
The only Unova Pokemon that evolves with a Leaf Stone is Pansage.
Lombre
i think eevee
seven
It is called a "leaf stone"
Bellsprout which evolves to Weepinbell then Victreebel (by leaf stone), Bulbusaur which evolves to Ivysaur then Venusaur, Tangela.
Nuzleaf will evolve into Shiftry and the leaf stone will turn Gloom into Vileplume.