
Europe and North America, widespread in deciduous and mixed forests.
Mycorrhizal with broadleaf trees on calcareous soils.
Summer to autumn.
Muscarine
Muscarinic poisoning with profuse sweating, salivation, and lacrimation within 30 minutes. Also contains psilocybin in some varieties, causing mixed symptoms.
Some varieties contain trace psilocybin, causing mild visual disturbances alongside muscarinic symptoms.