White Treehollow

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White Treehollow 白の樹洞 White Tree Hollow "Wild Missingno. appeared!"
Map description:	{{{mapdesc}}}
Location:	White Forest
Region:	Unova
Generations:	V
Location of White Treehollow in Unova.
Pokémon world locations

White Treehollow (Japanese: 白の樹洞 White Tree Hollow) is a training facility initially exclusive to Pokémon White 2. Located within White Forest, it is the counterpart to the Black Tower of Pokémon Black 2. The two facilities are collectively known as Unova's Challenge.

If a player of White 2 clears Area 5 of the White Treehollow, that player can send the Treehollow Key to Black 2 players, granting them access to White Forest, and consequently, the White Treehollow.

Description

The interior of the White Treehollow

The White Treehollow was established in White Forest between the events of Pokémon White and Pokémon White 2. The player cannot challenge it until they have defeated Alder in Floccesy Town after entering the Hall of Fame.

It comprises ten procedurally generated, progressively more complex areas, each with a number of Trainers. In each area, a randomly selected Trainer is the gate Trainer, who will unlock the door to the Boss Trainer's room when defeated. Defeating an area's Boss Trainer allows the player to challenge the next area. Exactly one of the Trainers on each floor is a Nurse, who will never be the gate Trainer, and upon being defeated in battle, will offer to heal the player's Pokémon but can only do so once. Areas 6 and beyond, which span multiple floors, will therefore have multiple Nurses. Some rooms will provide opportunities for players to use Cut or Strength for easier navigation. Each room can contain up to two (Areas 1-6) or three (Areas 7-10) Trainers, but no Trainers will appear in the room with the elevator; and Cut or Strength rooms, as well as the boss room, will always have exactly one Trainer.

Unlike true battle facilities, a battle style setting of "Shift" will be respected here, and the player will earn experience and money for winning battles, though they will forfeit the money earned during the challenge if they lose or retire out instead of completing the area. However, like in those facilities, encountering a Pokémon here does not cause it to register as being seen in the Pokédex. The use of Bag items is also disabled, both in-battle and out (except that the Bag can still be accessed from the Pokémon menu, for the limited purpose of giving a held item to a Pokémon). Items and menus registered to the Y button will not respond during a challenge, but all options that are normally on the X button menu still exist (other than Bag, which is replaced by a Retire option instead) and can be accessed during the challenge, as can the C-Gear.

Summary of floors

Area	Floors	Color scheme	Floor size	Trainers per floor
1	1	Blue	3×3	8
2	1	Blue	3×3	10
3	1	Green	3×3	12
4	1	Green	4×4	16
5	1	Green	4×4	16
6	2 (B6-B7)	Yellow	3×3	12
7	3 (B8-B10)	Yellow	3×3	14
8	2 (B11-B12)	Yellow	4×4	24
9	3 (B13-B15)	Yellow	4×4	24
10	4 (B16-B19)	Red	4×4	24

During the player's first playthrough in White 2, the beginning floors will feature scripted cutscenes with the gate Trainer going over the mechanics of White Treehollow, and those floors will contain fewer trainers than usual. The trainer count on each floor is established prior to the placement of the Boss Trainer's room, and may vary slightly from the listed figure depending on how many Trainers were originally in the room before being displaced by the Boss.

Items

Upon defeating the Boss Trainer of an area, the player is rewarded with one or two items within a rotation, as presented below.

Area Reward Areas 1-3 HP Up Protein Iron Calcium Zinc Carbos Areas 4-5 HP Up ×2 Protein ×2 Iron ×2 Calcium ×2 Zinc ×2 Carbos ×2

Area Reward Areas 6-7 Health Wing Muscle Wing Resist Wing Genius Wing Clever Wing Swift Wing Rare Candy Areas 8-9 Health Wing ×2 Muscle Wing ×2 Resist Wing ×2 Genius Wing ×2 Clever Wing ×2 Swift Wing ×2 Rare Candy ×2

Area Reward Area 10 Pomeg Berry Kelpsy Berry Qualot Berry Hondew Berry Grepa Berry Tamato Berry Rare Candy

In addition, players of White 2 will also receive the Treehollow key to send to Black 2 players upon completing Area 5 for the first time.

Trainers

Non-Boss Trainers that can be battled will all be from the following Trainer classes. Each class uses only Pokémon that award effort values in a single predetermined stat, and gives a specific type of hint after being defeated:

Trainer class	Effort values	Hint after defeat
Pokéfan ♂	HP	How many Trainers are in the room with the gate Trainer
Pokéfan ♀	HP	Whether the gate Trainer is standing, walking, or spinning
Black Belt	Attack	Which direction the gate Trainer's room is, relative to the current room
Battle Girl	Attack	Whether the gate Trainer is male or female
Janitor	Defense	How many Trainers are in the room with the gate Trainer
Nursery Aide	HP	Whether the gate Trainer is standing, walking, or spinning
Hiker	Defense	How many Trainers are in the room with the gate Trainer
Baker	HP	Whether the gate Trainer is male or female
Policeman	Attack	Which direction the gate Trainer's room is, relative to the current room
Roughneck*	Attack	Whether the gate Trainer is on a higher, lower, or the same floor
Construction Worker	Defense	Which direction the gate Trainer's room is, relative to the current room
Ice Worker*	Defense	Whether the gate Trainer is on a higher, lower, or the same floor
Pokémon Breeder ♂	HP	Which direction the Nurse's room is, relative to the current room
Pokémon Breeder ♀	HP	Identifying the Boss Trainer's lead Pokémon
Nurse	Attack	Offering a single-use opportunity to heal

If a Policeman, Black Belt, or construction Worker is in the same room as the gate Trainer, or on a different floor, their hint will be replaced by the generic message "Those are some skills! Don't you go losing to anyone, now!" If a male Pokémon Breeder is in the same room as the Nurse, their hint will become "Oww! Come on. Take it easy on me!" No matter what Trainer class the gate Trainer is, their hint either describes the direction to the Boss Trainer's room (which is always one room north of the room that contains the gate) in areas 1-5, or identifies the numbered floor that the Boss Trainer is on (possibly the current floor) in areas 6-10.

After the gate Trainer has been defeated, all hints that relate to the whereabouts of that Trainer will be replaced by generic messages.

Normal Trainers use two randomly selected Pokémon from their personal pool. Each of these Pokémon has a randomly generated level (within the level range for its area, which is reduced by 5 levels in Easy Mode and increased by 5 levels in Challenge Mode), gender (if the Pokémon's species has genders), and Ability (from among its possible non-Hidden Abilities). Both Pokémon will match in level, but not necessarily in gender. Trainers give out $40 times the level of their Pokémon after being defeated. Unlike in Black Tower, no non-Boss Trainers give increased prize money, but Pokémon Breeders use only Happiny, Chansey, and/or Blissey, and therefore provide significantly more Exp. Points than other Trainers. Opposing Pokémon will not hold any items except Berries, and only for Trainers that are sufficiently far: most Trainer classes begin using sets that include Berries starting with Area 5, Nurses begin doing so in Area 6, and Pokémon Breeders will never use Pokémon that hold items.

The Boss Trainers always use a fixed set of three Pokémon. Benga is the Boss Trainer of Area 10 in White 2, and upon first visit in Black 2 (but only if the player hasn't yet completed Area 10 of Black Tower first). Players of Black 2 will face Jariel instead of Benga on subsequent visits. Each Boss Trainer has their Pokémon with 3 levels more and gives the player $600 more than the previous area's Boss Trainer.

Area 1

Normal Trainers in Area 1 have Pokémon whose levels range from 47 to 50 in Normal Mode.

Boss Trainer Abigail White Treehollow Black 2 and White 2 Reward: $10600

Type: Normal Unknown Ability: Keen Eye Held item: Shell Bell Watchog♀ Lv.53 Crunch Dark Physical   --       Hyper Fang Normal Physical   --       Low Kick Fighting Physical   --       Hypnosis Psychic Status   --       Types: Bug Poison Ability: Poison Point Held item: Black Sludge Whirlipede♀ Lv.53 Steamroller Bug Physical   --       Toxic Spikes Poison Status   --       Iron Defense Steel Status   --       Protect Normal Status   --       Types: Ground Ghost Ability: Iron Fist Held item: Muscle Band Golett Lv.53 Magnitude Ground Physical   --       Rock Slide Rock Physical   --       Shadow Punch Ghost Physical   --       Iron Defense Steel Status   --

Area 2

Normal Trainers in Area 2 have Pokémon whose levels range from 50 to 53 in Normal Mode.

Boss Trainer Brent White Treehollow Black 2 and White 2 Reward: $11200

Types: Normal Flying Ability: Super Luck Held item: Scope Lens Unfezant♂ Lv.56 Air Cutter Flying Special   --       Quick Attack Normal Physical   --       Steel Wing Steel Physical   --       Hypnosis Psychic Status   --       Type: Normal Unknown Ability: Healer Held item: Expert Belt Audino♂ Lv.56 Attract Normal Status   --       Ice Beam Ice Special   --       Flamethrower Fire Special   --       Thunderbolt Electric Special   --       Type: Electric Unknown Ability: Levitate Held item: Wise Glasses Eelektrik♂ Lv.56 Discharge Electric Special   --       Thunder Wave Electric Status   --       Crunch Dark Physical   --       Signal Beam Bug Special   --

Area 3

Normal Trainers in Area 3 have Pokémon whose levels range from 53 to 56 in Normal Mode.

Boss Trainer Carleigh White Treehollow Black 2 and White 2 Reward: $11800

Type: Normal Unknown Ability: Intimidate Held item: Muscle Band Stoutland♀ Lv.59 Work Up Normal Status   --       Wild Charge Electric Physical   --       Fire Fang Fire Physical   --       Take Down Normal Physical   --       Types: Bug Grass Ability: Swarm Held item: Life Orb Leavanny♀ Lv.59 Swords Dance Normal Status   --       X-Scissor Bug Physical   --       Aerial Ace Flying Physical   --       Leaf Storm Grass Special   --       Types: Electric Flying Ability: Static Held item: Wide Lens Emolga♀ Lv.59 Thunder Electric Special   --       Air Slash Flying Special   --       Iron Tail Steel Physical   --       Charm Normal Status   --

Area 4

Normal Trainers in Area 4 have Pokémon whose levels range from 56 to 59 in Normal Mode.

Boss Trainer Daneil White Treehollow Black 2 and White 2 Reward: $12400

Types: Dark Fighting Ability: Moxie Held item: Leftovers Scrafty♂ Lv.62 Hi Jump Kick Fighting Physical   --       Head Smash Rock Physical   --       Scary Face Normal Status   --       Bulk Up Fighting Status   --       Type: Normal Unknown Ability: Immunity Held item: Muscle Band Zangoose♂ Lv.62 Crush Claw Normal Physical   --       X-Scissor Bug Physical   --       Close Combat Fighting Physical   --       Swords Dance Normal Status   --       Type: Fire Unknown Ability: Flash Fire Held item: Zoom Lens Heatmor♂ Lv.62 Inferno Fire Special   --       Focus Blast Fighting Special   --       Sucker Punch Dark Physical   --       Hone Claws Dark Status   --

Area 5

Normal Trainers in Area 5 have Pokémon whose levels range from 59 to 62 in Normal Mode.

Boss Trainer Elie White Treehollow Black 2 and White 2 Reward: $13000

Types: Ground Psychic Ability: Levitate Held item: Quick Claw Claydol Lv.65 Rain Dance Water Status   --       Psychic Psychic Special   --       Earthquake Ground Physical   --       Explosion Normal Physical   --       Types: Rock Water Ability: Swift Swim Held item: Choice Specs Omastar♂ Lv.65 Ice Beam Ice Special   --       Earth Power Ground Special   --       Hydro Pump Water Special   --       AncientPower Rock Special   --       Types: Water Ghost Ability: Cursed Body Held item: Choice Scarf Jellicent♀ Lv.65 Ice Beam Ice Special   --       Water Spout Water Special   --       Energy Ball Grass Special   --       Shadow Ball Ghost Special   --

Area 6

Normal Trainers in Area 6 have Pokémon whose levels range from 62 to 65 in Normal Mode.

Boss Trainer Frederick White Treehollow Black 2 and White 2 Reward: $13600

Types: Normal Flying Ability: Serene Grace Held item: Salac Berry Togekiss♂ Lv.68 Air Slash Flying Special   --       Aura Sphere Fighting Special   --       ExtremeSpeed Normal Physical   --       Encore Normal Status   --       Types: Bug Fighting Ability: Guts Held item: Flame Orb Heracross♂ Lv.68 Close Combat Fighting Physical   --       Megahorn Bug Physical   --       Night Slash Dark Physical   --       Aerial Ace Flying Physical   --       Type: Rock Unknown Ability: Mold Breaker Held item: Choice Scarf Rampardos♂ Lv.68 Head Smash Rock Physical   --       Outrage Dragon Physical   --       Zen Headbutt Psychic Physical   --       Earthquake Ground Physical   --

Area 7

Normal Trainers in Area 7 have Pokémon whose levels range from 65 to 68 in Normal Mode.

Boss Trainer Gail White Treehollow Black 2 and White 2 Reward: $14200

Type: Water Unknown Ability: Marvel Scale Held item: Leftovers Milotic♀ Lv.71 Recover Normal Status   --       Hypnosis Psychic Status   --       Dragon Tail Dragon Physical   --       Hydro Pump Water Special   --       Types: Ice Ground Ability: Oblivious Held item: Life Orb Mamoswine♀ Lv.71 Earthquake Ground Physical   --       Stone Edge Rock Physical   --       Ice Shard Ice Physical   --       Superpower Fighting Physical   --       Types: Fighting Steel Ability: Inner Focus Held item: Focus Sash Lucario♀ Lv.71 Aura Sphere Fighting Special   --       Dragon Pulse Dragon Special   --       ExtremeSpeed Normal Physical   --       Swords Dance Normal Status   --

Area 8

Normal Trainers in Area 8 have Pokémon whose levels range from 68 to 71 in Normal Mode.

Boss Trainer Harmon White Treehollow Black 2 and White 2 Reward: $14800

Types: Grass Ground Ability: Overgrow Held item: Yache Berry Torterra♂ Lv.74 Curse Ghost Status   --       Wood Hammer Grass Physical   --       Earthquake Ground Physical   --       Outrage Dragon Physical   --       Type: Fire Unknown Ability: Flash Fire Held item: Liechi Berry Arcanine♂ Lv.74 Flare Blitz Fire Physical   --       ExtremeSpeed Normal Physical   --       Close Combat Fighting Physical   --       Wild Charge Electric Physical   --       Types: Electric Flying Ability: Prankster Held item: Red Card Thundurus♂ Lv.74 Rain Dance Water Status   --       Thunder Wave Electric Status   --       Thunder Electric Special   --       Superpower Fighting Physical   --

Area 9

Normal Trainers in Area 9 have Pokémon whose levels range from 71 to 74 in Normal Mode.

Boss Trainer Iria White Treehollow Black 2 and White 2 Reward: $15400

Types: Dragon Flying Ability: Intimidate Held item: Yache Berry Salamence♀ Lv.77 Earthquake Ground Physical   --       Heat Wave Fire Special   --       Zen Headbutt Psychic Physical   --       Outrage Dragon Physical   --       Types: Fire Flying Ability: Pressure Held item: Power Herb Moltres Lv.77 Sky Attack Flying Physical   --       Heat Wave Fire Special   --       SolarBeam Grass Special   --       Roost Flying Status   --       Type: Electric Unknown Ability: Pressure Held item: Air Balloon Raikou Lv.77 Extrasensory Psychic Special   --       Shadow Ball Ghost Special   --       Thunder Electric Special   --       Magnet Rise Electric Status   --

Area 10

Normal Trainers in Area 10 have Pokémon whose levels range from 74 to 77 in Normal Mode.

White 2

Boss Trainer Benga White Treehollow White 2 Reward: $16000

Types: Dragon Psychic Ability: Levitate Held item: White Herb Latias♀ Lv.80 Draco Meteor Dragon Special   --       Psychic Psychic Special   --       Icy Wind Ice Special   --       Thunderbolt Electric Special   --       Types: Dragon Flying Ability: Inner Focus Held item: Life Orb Dragonite♂ Lv.80 Outrage Dragon Physical   --       Dragon Dance Dragon Status   --       Fire Blast Fire Special   --       Focus Blast Fighting Special   --       Types: Bug Fire Ability: Flame Body Held item: Focus Sash Volcarona♂ Lv.80 Quiver Dance Bug Status   --       Bug Buzz Bug Special   --       Fire Blast Fire Special   --       Psychic Psychic Special   --

Black 2 (subsequent visits)

Boss Trainer Jariel White Treehollow Black 2 Reward: $16000

Types: Electric Flying Ability: Pressure Held item: Life Orb Zapdos Lv.80 Thunder Electric Special   --       Heat Wave Fire Special   --       Discharge Electric Special   --       Roost Flying Status   --       Type: Psychic Unknown Ability: Levitate Held item: Ganlon Berry Cresselia♀ Lv.80 Calm Mind Psychic Status   --       Substitute Normal Status   --       Moonlight Normal Status   --       Psychic Psychic Special   --       Types: Dragon Psychic Ability: Levitate Held item: White Herb Latias♀ Lv.80 Draco Meteor Dragon Special   --       Psychic Psychic Special   --       Icy Wind Ice Special   --       Thunderbolt Electric Special   --

In the manga

Pokémon Adventures

Black 2 & White 2 arc

In Deduction Time, Iris, Alder, and Gorm broke out of the White Treehollow after White Forest had been frozen over by the Plasma Frigate. In Giant Chasm, Iris revealed that she had trained at the White Treehollow together with Alder, N, Gorm, and Benga. Since Alder and N were the strongest Trainers in Unova, by the virtue of Alder being the Champion and N having beaten him, Iris had challenged and beaten them both, making her the new Unova League Champion.

Trivia

• The ordinary Boss Trainers follow an alphabetical naming pattern, having initials A through J in the English versions, and ア a through ワ wa in Japanese versions.
• With 20 floors, White Treehollow is tied with Black Tower for having the most accessible floors out of any known location in the Pokémon world.

In other languages

Language Title Chinese Cantonese 白色樹洞 Baahksīk Syuhduhng Mandarin 白色樹洞 / 白色树洞 Báisè Shùdòng French Arbre Creux Blanc German Weiße Baumhöhle Italian Antro dell'Albero Bianco Korean 백의 수동 Baeg-ui Sudong Spanish Cavernogal Blanco

See also

• White Forest
• Black Tower

Unova
Settlements Nuvema Town • Accumula Town • Striaton City • Nacrene City • Castelia City • Nimbasa City • Anville Town Driftveil City • Mistralton City • Icirrus City • Opelucid City • Pokémon League • Lacunosa Town • Undella Town Black City • White Forest • Aspertia City • Floccesy Town • Virbank City • Lentimas Town • Humilau City Routes 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8 • 9 • 10 • 11 • 12 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 20 • 21 • 22 • 23 Bridges and tunnels Skyarrow Bridge • Driftveil Drawbridge • Tubeline Bridge • Village Bridge • Marvelous Bridge • Marine Tube Landmarks Dreamyard • Wellspring Cave • Pinwheel Forest • Liberty Garden • Desert Resort • Relic Castle • Battle Subway • Lostlorn Forest Cold Storage • Mistralton Cave • Chargestone Cave • Celestial Tower • Twist Mountain • Dragonspiral Tower • Moor of Icirrus Challenger's Cave • Victory Road (BW • B2W2) • N's Castle • Royal Unova • Giant Chasm • Undella Bay • Abyssal Ruins Abundant Shrine • Poké Transfer Lab • P2 Laboratory • Entralink • Unity Tower • Floccesy Ranch • Pledge Grove • Virbank Complex Pokéstar Studios • Castelia Sewers • Join Avenue • Cave of Being • Pokémon World Tournament • Reversal Mountain • Plasma Frigate Clay Tunnel • Underground Ruins • Strange House • Relic Passage • Seaside Cave • White Treehollow • Black Tower Access to Nature Preserve Other Blueberry Academy • Terarium

This article is part of Project Locations, a Bulbapedia project that aims to write comprehensive articles on every location in the Pokémon world.