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Smith's Amanita
A large white Amanita of Pacific Northwest conifer forests with a powdery veil and a rooting, spindle-shaped stem base. It causes delayed acute kidney failure and is notorious for being picked by mistake for the western matsutake. It should be treated as dangerously poisonous.
Dangerously poisonous; California Fungi rates it deadly. It causes acute kidney injury: gastrointestinal symptoms appear 1-12 hours after eating, then kidney failure develops 2-6 days later. Patients may need hemodialysis, though most recover kidney function. The suspected toxins are allenic norleucine and chlorocrotylglycine. It is mistaken for matsutake; never eat white Amanitas.
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Mycology is an evolving science: names, classifications and safety information change as research advances. Entries are compiled from cited sources and reviewed, but may be incomplete or out of date — check the sources, and never rely on this library alone to identify or eat a mushroom.
