Western North America Destroying Angel

Amanita ocreata

Aliso Canyon, Aliso and Wood Canyons Wilderness Park, Orange County, CA. 1/13/2019-1/19/2019. © Peter J. Bryant. Identified by Joanne Schwartz

Occurs in the Pacific Northwest and California floristic provinces of North America, in association with oak trees. Highly toxic due to the presence of α-amanitin, for which there is no known antidote.

Family: Amanitaceae

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Stipe has a ring, and a volva at the base. The ring around the stipe is very fragile and easily comes off, as in this image. Do not consider this as a critical feature in identifying this deadly species.

Ring under cap

Ring under cap

Stipe has a ring and a volva

Stipe has a ring and a volva

KOH stains cap yellow

Immature fruiting body ("egg")

Immature fruiting body ("egg") cut open