Mushrooms of Forgetfulness is a species of mushroom native to the Digital World. The only place it's known to grow is the Forest Area of Server Continent. Although sizes and shapes may vary, the mushroom is shown to have light brown-colored cap with some having circles on it and a white body.
DemiDevimon tried to trick TK, Tai, and Agumon into eating these mushrooms in order to wipe their memories after seeing the fungus' effect on the Gazimon that once belonged to Etemon's army. The plan failed due to the intervention of Sora who overheard DemiDevimon's plan.