 Rock Oak 
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|---|---|
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 Name
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| Japanese | ロックオーク |
| Romanized | Rokku Ōku |
| Statistics
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| Type | Plant |
| Capture Level | Unknown |
| Location | Gourmet World |
| Debut Appearance
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| Anime | Episode 137 (mentioned) |
| [v · t · e] | |
Rock Oak (ロックオーク Rokku Ōku) is an evergreen tree from Gourmet World that is several hundred times harder than diamond. Grinpatch's new straw has been coated with the sap of this tree, making it hard to break and even resistant to Coco's Poison Sword.