http://www.newsweek.com/fly-agaric-mushroom-poisonous-lake-tahoe-1835017

A spate of poisonous toadstools straight out of a fairytale or a Mario game have been popping up around Lake Tahoe, which straddles the California-Nevada border, risking the health of foragers.

These mushrooms, known as fly agarics, have a bright red domed top with white spots across it, just like Mario's superpowered fungi, and are toxic if eaten.