Species library · Mushrooms

Gassy Webcap: poisonous

Cortinarius traganus

☠ Poisonous. Do not eat.What to do if poisoning is suspected

Gassy Webcap is classed as poisonous in the Forage field guide. This page helps you identify it and tell it apart from similar species. It is not a foraging guide. Have every wild mushroom checked by a qualified mushroom expert before eating it.

If you suspect poisoning, call your local poison control center right away. If someone has trouble breathing, has a seizure or is unconscious, call emergency services. Don't wait for symptoms: with some poisonings they only start hours later. Keep any leftovers of the find, they help identify it.

Usually seen from January to December in the northern hemisphere. Can be confused with similar species.

☠ Poisonous
Gassy Webcap (Cortinarius traganus)

Photo: This image was created by user Ron Pastorino (Ronpast) at Mushroom Observer, a source for mycological images.You can contact this user here. · CC BY-SA 3.0

When Gassy Webcap appears

Typical window in the northern hemisphere. The southern hemisphere runs about six months offset.

Look up Gassy Webcap in the app

In the Forage app, Gassy Webcap has a full field guide entry with more photos, key features and the species it can be confused with.

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Gassy Webcap: common questions

Is Gassy Webcap poisonous?

Yes. Gassy Webcap is classed as poisonous in the Forage field guide. Do not eat it. If you suspect poisoning, call your local poison control center right away, or emergency services if it is life-threatening.

When does Gassy Webcap appear?

Gassy Webcap usually appears from January to December in temperate northern regions. The exact timing shifts with latitude, elevation and each year's weather.

What can Gassy Webcap be confused with?

Toxic look-alikes: Goatcheese webcap, Silvery-violet webcap, Violet webcap. Only a confident identification tells them apart. When in doubt, have a find checked by a qualified mushroom expert.

One note before you head out

Forage helps you discover and identify wild plants, but identification is never 100% certain. Many edible plants have toxic lookalikes. Never eat anything you find based only on what this app tells you. Always confirm with a field guide, an experienced forager or a local expert. The season score tells you where to look, too: it’s not a guarantee. Mind conservation law and property rights as well.

Species photos via Wikimedia Commons and iNaturalist · full credits