One Piece Encyclopedia


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IQ is a rare species of flower only known in the flying archipelago, Merveille. Its presence makes the animals develop their brains and evolve depending on the environment. This plant was later used by Dr. Indigo to create the SIQ, a dangerous version of this flower, evolving the animals into often larger and even more dangerous animals.[1] IQ is also the only cure to the poisonous spores released by the Daft Green plant.


  • "I.Q." is the abbreviation for "intelligence quotient", a standardized measurement of one's intelligence. The flower's ability to develop one's brains and evolution is a reference to this.


  1. One Piece Movie 10, Indigo explains about the SIQ and its origin, the IQ.

External LinksEdit

  • Evolution - Wikipedia article on the process this plant stimulates.

Site NavigationEdit

[v · e · ?]
Golden Lion Pirates
Members: Shiki  •  Indigo  •  Scarlet  •  Nami   •  Mutant Animal Army (Billy   •  Boss )
Allies: Amigo Pirates (Largo  •  Corto)  •  Kitajima
Ships: Island Ship
Devil Fruit based: Fuwa Fuwa no Mi  •  Ami Ami no Mi
Weapon based: Oto and Kogarashi
Others: SIQ  •  Daft Green
Related Articles
Movie and Other media: One Piece Film: Strong World  •  Chapter 0  •  Episode 0 OVA
Locations: Edd War  •  Impel Down  •  Merveille
Others: Battle in Edd War  •  Roger Pirates
[v · e · ?]
Plants and Fungi
Plants: Thousand-Year Trees  •  Daft Green  •  Giant Jack  •  IQ  •  Kona Tree  •  Lily Carnation  •  Mescal Cactus  •  Pop Green  •  Sakura  •  Stomach Baron  •  Sunlight Tree Eve  •  Treasure Tree Adam  •  Tree of Knowledge  •  Weather Ball  •  Yarukiman Mangrove  •  Kuuigosu  •  Elegant Sunflower
Fungi: Amiudake  •  Body Mushroom  •  Noko Noko no Mi

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