Pokémon Name: Tangrowth
Pokédex Number: 465 National
Ability: Chlorophyll – Increases Speed during Sunny Days; Leaf Guard – Heals status effects on Sunny Days
Dream World ability: Regenerator – Restores 1/3 HP when user switches out
Useful Attacks: Power Vine
D/P/P/HG/SS: Evolves from Tangela when leveled up with AncientPower in moveset
B/W: Route 13, Giant Chasm (shaking grass only, rare)
One of the weirder one-off Pokémon in the first Pokémon adventures was Tangela, an ambulatory tangle of vines. Apparently Tangela came from a sturdier breed of kudzu millennia ago, and it can revert to this prehistoric state when it learns AncientPower. Tangrowth is an even bigger wad of vines, doing all of the same things Tangela did, only bigger.