How to tell Fool's funnel from Frosty funnel
How they differ, how to recognize them and which is more dangerous — a mushroom comparison
Warning: Fool's funnel(Clitocybe rivulosa)
POISONOUS
Eating it causes poisoning. Do not pick it unless you have identified it with certainty.
Toxin: muscarine in high concentration. Symptoms begin 15-60 minutes after eating (fast). The classic muscarinic syndrome (PSL): profuse salivation (liters of it), heavy sweating that soaks through clothing, tearing, runny nose, constricted pupils (miosis), bronchospasm with a feeling of suffocation, bradycardia down to 30-40 bpm, a drop in blood pressure, intestinal cramps, diarrhea, nausea. In severe cases — collapse, pulmonary edema, risk of cardiac arrest. The antidote is atropine, given in hospital under ECG monitoring. If you suspect poisoning, call 112 or your local emergency number immediately. Keep the mushroom remains and any vomit. The prognosis is favorable with prompt treatment (1-2 hours).
If you suspect poisoning, call an ambulance immediately: 112 (the European emergency number) or your local emergency number
Warning: Frosty funnel(Clitocybe phyllophila)
POISONOUS
Eating it causes poisoning. Do not pick it unless you have identified it with certainty.
Toxin: muscarine in moderately high concentration. Symptoms begin 15-60 minutes after eating. Classic muscarinic syndrome (PSL): profuse salivation, heavy sweating, tearing, constricted pupils (miosis), bronchospasm, bradycardia, low blood pressure, intestinal cramps, diarrhea, nausea. Lasts 4-12 hours. The antidote is atropine, given in hospital under ECG monitoring. If you suspect poisoning — call 112 or your local emergency number immediately. Keep the mushroom remains for identification. The prognosis is good with prompt treatment.
If you suspect poisoning, call an ambulance immediately: 112 (the European emergency number) or your local emergency number
The short answer
Fool's funnel and Frosty funnel look alike, so they're easy to mix up — but Fool's funnel is poisonous, while Frosty funnel is poisonous. The main visible difference: cap shape: Fool's funnel — flat, Frosty funnel — funnel-shaped. The mushrooms also differ in the following features: substrate. If you have even the slightest doubt, leave the mushroom be.

Fool's funnel
Clitocybe rivulosa

Frosty funnel
Clitocybe phyllophila
📊 Comparing characteristics
⚠ Highlighted rows are the key differences between the edible and the dangerous mushroom
| Characteristic | Fool's funnel | Frosty funnel |
|---|---|---|
| Edibility class | Fool's funnel Poisonous | Frosty funnel Poisonous |
| Season | Fool's funnel SummerAutumn | Frosty funnel SummerAutumn |
| Use | Fool's funnel Not eaten | Frosty funnel Not eaten |
| Size | Fool's funnel Small (up to 5 cm) | Frosty funnel Small (up to 5 cm) |
| Cap color | Fool's funnel WhiteCreamPink | Frosty funnel WhiteCreamPink |
| ⚠ Cap shape | Fool's funnel Flat | Frosty funnel Funnel-shaped |
| Cap surface | Fool's funnel Smooth | Frosty funnel Smooth |
| Taste | Fool's funnel Mild | Frosty funnel Mild |
| Smell | Fool's funnel Floury | Frosty funnel Floury |
| Flesh color change | Fool's funnel No change | Frosty funnel No change |
| Hymenophore | Fool's funnel Gilled | Frosty funnel Gilled |
| Stem | Fool's funnel Central | Frosty funnel Central |
| Ring (veil) | Fool's funnel No ring | Frosty funnel No ring |
| Volva | Fool's funnel No volva | Frosty funnel No volva |
| ⚠ Substrate | Fool's funnel Soil | Frosty funnel SoilForest litter |
| Nutrition type | Fool's funnel Saprotroph | Frosty funnel Saprotroph |
| ⚠ Partner trees | Fool's funnel — | Frosty funnel OakBeechHornbeamBirch |
📅 Seasonality
Fool's funnel
Fruiting season
August – November
Frosty funnel
Fruiting season
August – November
🔬 Morphology
Cap
Fool's funnel
The cap is 2-5 cm across, convex in young mushrooms, becoming flat and spread out or slightly funnel-shaped with a thin wavy margin. The color is whitish to cream, with characteristic pinkish-cream concentric zones or streaks from the center to the margin — a diagnostic feature. The surface is silky-matte; in wet weather the skin is somewhat sticky.
Frosty funnel
Cap 3-7 cm across, convex when young, becoming funnel-shaped over time, with a depressed center and a thin wavy margin. Color whitish to cream, with a pale pink or ochre tint in the center and a characteristic silky, waxy sheen. Slightly sticky in wet weather, matte when dry.
Hymenophore
Fool's funnel
Gilled hymenophore. The gills are crowded and thin, decurrent down the stem (a feature typical of the genus Clitocybe). Whitish to pale pink. The spore print is white.
Frosty funnel
Gilled hymenophore. Gills crowded, thin, decurrent down the stem. Color whitish to cream, taking on a pale pink tint with age. Spore print white to pale pinkish-cream.
Stem
Fool's funnel
The stem is 2-5 cm tall, 0.4-0.8 cm thick, slender, cylindrical, often curved. Whitish to cream, with white mycelial fuzz at the base. The surface is smooth, with no ring.
Frosty funnel
Stem 3-6 cm tall, 0.4-1 cm thick, cylindrical, often thickening toward the base. Color whitish to cream, with white mycelial fuzz at the base. Surface smooth, no ring.
Flesh
Fool's funnel
The flesh is thin, white, watery and brittle. It does not change color when cut. A faint, sweetish smell and mild taste — dangerously "normal".
Frosty funnel
Flesh thin, white, soft. Does not change color when cut. It has a pleasant sweetish smell and a mild taste — as with other poisonous Clitocybe, the lack of any unpleasant smell makes it all the more treacherous.
Smell
Fool's funnel
Faint, sweetish and not distinctive. Nothing alarming. The taste is mild. Neither smell nor taste gives away that it is poisonous.
Frosty funnel
Sweetish, pleasant. Raises no suspicion. Taste mild. Don't rely on smell or taste for identification — they give no hint of toxicity.
📍 Habitats
Fool's funnel
Frosty funnel
👀 Similar mushrooms — don't mix them up!
❓ Frequently asked questions
Can Fool's funnel and Frosty funnel be mixed up?
How to tell Fool's funnel from Frosty funnel?
Which is more dangerous — Fool's funnel or Frosty funnel?
Is Frosty funnel edible?
When do Fool's funnel and Frosty funnel grow?
Sources
- [1]Вікіпедія (українська)
- [2]Атлас грибів України, Зеров Д.К. (1979)
- [3]MycoBank Database
- [4]Index Fungorum
- [5]GBIF
- [6]iNaturalist Ukraine