False Morel (TOXIC)
Gyromitra esculenta
Family: Discinaceae
Also called: False Morel, Beefsteak Morel, Brain Mushroom, Turban Fungus
Overview
DANGEROUS FALSE MOREL — contains gyromitrin, which metabolizes to monomethylhydrazine (a rocket-fuel component and known carcinogen). Causes hemolytic anemia and liver failure; even cooking-vapor exposure is hazardous and some individuals react to parboiled specimens. Cap is BRAIN-LIKE, saddle-shaped, lobed and wrinkled — NEVER honeycombed or pitted like a true morel. Stem is not hollow throughout. Primarily conifer associate, early spring (Mar–Apr), often with or before true morels. Catalogued for identification only; do not consume. Not related to Fistulina hepatica (beefsteak fungus).
Season
Late Mar – May — typical fruiting months: Feb, Mar, Apr.
Host trees & substrate
- Conifer (white pine, hemlock) duff
- Sandy disturbed ground
Where it grows
See live fruiting predictions for False Morel (TOXIC) on the forecast home page, or browse the full field guide.
Always confirm wild-mushroom identification with multiple sources and a knowledgeable local expert before consuming. Read the foraging safety guide.