Amanita bisporigera

Amanita bisporigera is a species of highly poisonous, pure white mushroom belonging to the genus Amanita. It is one of the "destroying angels," a group of deadly fungi that also includes Amanita verna and Amanita virosa. These mushrooms are characterized by their white spores, a ring on the stem, and a cup-like structure at the base of the stalk.12

Amanita bisporigera is considered one of the most toxic mushrooms in North America. Ingestion can lead to severe symptoms such as vomiting, delirium, convulsions, diarrhea, and ultimately liver and kidney failure, often resulting in death. These toxic fungi can be mistaken for edible varieties like button mushrooms and meadow mushrooms, making them particularly dangerous.3