Shroob mushroom

Shroob Mushrooms are purple Mushrooms that appear during the events of Mario & Luigi: Partners in Time. The evil extraterrestrials known as the Shroobs were capable of firing purple energy bolts that could turn anyone into a Shroob Mushroom. Toadiko, Toadbert, Kylie Koopa and Baby Bowser, as well as many others, all suffer this horrible fate, but they are all revived when Professor E. Gadd spread a chemical that has the same make-up as baby tears across the Mushroom Kingdom. Some Shroobs are also known to turn into these purple mushrooms when defeated, like Elder Princess Shroob. Also, in the Toad Town of the past, a lot of Shoob Mushrooms can be seen as result of the invasion.

Trivia

 * Shroob Mushrooms can talk in the most extreme cases, such as when Elder Princess Shroob died at the end of Mario & Luigi: Partners in Time.
 * The chemical composition of baby tears are the only known thing that can turn a being that has been transformed into a Shroob Mushroom back to their original state.
 * In the game, they were sometimes referred to as Poison Mushrooms.