Amanita phalloides was originally described from Europe. In Europe in occurs with beech (Fagus), oak (Quercus), pine (Pinus), chestnut (Castanea), horse chestnut (Aesculus), birch (Betula), filbert and hazelnuts (Corylus maxima), iron wood or hornbeam (Carpinus), and spruce (Picea). In the northern hemisphere the present species when transplanted can spread to local trees of the same genera in addition to Canadian hemlock (Tsuga). It is reported under Leptospermum in New Zealand and under Eucalyptus and leguminous trees in Tanzania. Importation in the western hemisphere has occurred from Canada to Argentina.
This species is easily exported with its symbionts (oaks, pines, nut trees, etc.). As a consequence, it has been introduced in many countries in which European trees of its symbionts have been planted. It can then be exported from those countries it has colonized. It would appear that it and A. muscaria (L.:Fr.) Lam. subsp. muscaria have been the most commonly exported species of Amanita.
Everywhere it has been imported, it is a major cause of life-threatening mushroom poisonings. See also, A. arocheae Tulloss, Ovrebo & Halling, A. fuliginea Hongo, A. marmorata Cleland & E.-J. Gilbert, and A. subjunquillea S. Imai. The reader may want to examine the recently revised key to the taxa of sect. Phalloideae in North America.
No one has provided updates yet.