IQ

The IQ (I.Q.) 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, making the animals bigger and angrier. IQ is also the only cure to the poisonous spores released by the Daft Green plant.

Trivia

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