Boomshrooms

Boomshrooms are a type of fungus that, when harvested, can be used as a timed explosive. Pushing on its cap results in its activation, indicated by multiple bioluminescent flashes of blue, before it explodes in a large radius with a flash of blue smoke which lingers in the air momentarily.

Trivia

 * Each Boomshroom cap has white skull illustrations on it (possibly a bred genetic trait), signifying its extreme danger and hazardous.
 * It's one of Polly Plantar's favorite weapons, first using them throughout the episode "Combat Camp".
 * Later appearances include "Reunion", "Swamp and Sensibility", "Return to Wartwood", "Bessie & MicroAngelo" and the short "Amphibia Food!".

Boomshrooms