Pop Green

Pop Green (ポップグリーン) is the seed of the hostile plants in the forest of "Greenstone" on Boin Archipelago. It can grow from seeds to full-sized plants in moments.

History
Heracles uses these seeds as bullets and weapons. According to Heracles, they have various uses. Heracles taught Usopp how they work.

Usage
Not much is known about the Pop Green's usage, but it can be used to create plants. How it is triggered is currently unknown. Usopp fires them with his new Black Kabuto and it summons a carnivorous plant to attack the target on impact.