Mushroom Forest

The Mushroom Forest is a location in The Super Mario Bros. Movie where Mario first ends up after being transported into the Mushroom Kingdom through a mysterious pipe. In the forest, Mario meets Toad, Biddybuds, and Bramballs.

The Mushroom Forest primarily consists of giant mushrooms. When Mario attempts to touch a blue mushroom, Toad suddenly warns him that the mushroom is poisonous (before realizing afterwards that it is actually harmless), implying there are inedible mushrooms in the forest as well.