Common Ink Cap
Coprinopsis atramentaria
Family: Agaricaceae
Also called: Tippler's Bane, Common Inky Cap, Alcohol Inky

Overview
Tippler's bane — coprine toxin reacts with alcohol consumed within ~72 hours. Edible only when totally alcohol-free; cook young, eat fresh.
Edibility
Edible
Rarity
common
Trophic mode
saprotrophic
Typical peak
Sep–Oct
Season
Sep–Nov — typical fruiting months: Aug, Sep, Oct.
Host trees & substrate
- Decaying oak wood and forest litter
- Decaying beech wood and forest litter
- Decaying maple wood and forest litter
Where it grows
See live fruiting predictions for Common Ink Cap 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.