A European and North African Amanita with a yellow-brown to brown cap dotted with yellow veil warts, a thick ring and yellow veil remnants on the bulbous stem base. The western North American mushroom long called A. franchetii was described as a separate species, A. augusta, in 2013. Reports of toxicity mean it should never be eaten.
Poisonous; do not eat. It is reported as toxic raw or undercooked. Ten deaths in China in 2005, with symptoms resembling amatoxin poisoning, were attributed to this species in a published case report, but that identification has been questioned. It can be confused with the panther cap (Amanita pantherina, ibotenic acid/muscimol), which has white rather than yellow warts and a rolled collar at the top of the bulb, and with the blusher (A. rubescens), whose flesh bruises pinkish red.
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Habitat
Ectomycorrhizal with oaks, chestnuts and pines; var. lactella with oaks and hornbeam.
Distribution
Europe and North Africa; var. lactella in the western Mediterranean and reported from Serbia. North American material formerly called A. franchetii (or A. aspera) is a different species: western collections are Amanita augusta Bojantchev & R.M. Davis (northern and central California north to Alaska, also reported from Idaho and Montana). MushroomExpert treats a somewhat similar eastern North American mushroom under an informal name (Amanita 'species 06').
Characteristics
Cap: 5-12 cm, yellow-brown to brown, with loose yellow universal-veil warts. Gills: close, white to pale yellow. Stem: thick, enlarged at the base, white to yellowish, with loose yellow veil patches on the bulb. Ring: thick. Flesh: white or pale yellow; odor mild. Spore print: white. Variety lactella is entirely white except for bright yellow veil remnants.
