How to tell Sheathed woodtuft from Sulphur tuft
How they differ, how to recognize them and which is more dangerous — a mushroom comparison
Warning: Sulphur tuft(Hypholoma fasciculare)
POISONOUS
Eating it causes poisoning. Do not pick it unless you have identified it with certainty.
Causes severe gastrointestinal poisoning; in rare severe cases liver damage and death have been described. Which compound (fasciculols, fasciculic acids, muscarine) is responsible for poisoning in humans has not been established. Symptoms appear after a few hours, from 3 to 10 depending on the source.
If you suspect poisoning, call an ambulance immediately: 112 (the European emergency number) or your local emergency number
The short answer
Sheathed woodtuft and Sulphur tuft look alike, so they're easy to mix up — but Sheathed woodtuft is edible, while Sulphur tuft is poisonous. The main visible difference: use: Sheathed woodtuft — cook fresh, drying, pickling, Sulphur tuft — not eaten. The mushrooms also differ in the following features: cap color, cap shape, taste. If you have even the slightest doubt, leave the mushroom be.

Sulphur tuft
Hypholoma fasciculare

Sheathed woodtuft
Kuehneromyces mutabilis
📊 Comparing characteristics
⚠ Highlighted rows are the key differences between the edible and the dangerous mushroom
| Characteristic | Sulphur tuft | Sheathed woodtuft |
|---|---|---|
| ⚠ Edibility class | Sulphur tuft Poisonous | Sheathed woodtuft Edible |
| Season | Sulphur tuft SpringSummerAutumn | Sheathed woodtuft SpringSummerAutumn |
| ⚠ Use | Sulphur tuft Not eaten | Sheathed woodtuft Cook freshDryingPickling |
| Size | Sulphur tuft Small (up to 5 cm) | Sheathed woodtuft Small (up to 5 cm) |
| ⚠ Cap color | Sulphur tuft YellowOlive | Sheathed woodtuft BrownCreamYellow |
| ⚠ Cap shape | Sulphur tuft ConvexFlat | Sheathed woodtuft Convex |
| Cap surface | Sulphur tuft Smooth | Sheathed woodtuft Smooth |
| ⚠ Taste | Sulphur tuft Bitter | Sheathed woodtuft Mild |
| ⚠ Smell | Sulphur tuft Unpleasant | Sheathed woodtuft Pleasant |
| Flesh color change | Sulphur tuft No change | Sheathed woodtuft No change |
| Hymenophore | Sulphur tuft Gilled | Sheathed woodtuft Gilled |
| ⚠ Stem | Sulphur tuft CentralHollow | Sheathed woodtuft Central |
| ⚠ Ring (veil) | Sulphur tuft No ring | Sheathed woodtuft Ring present |
| Volva | Sulphur tuft No volva | Sheathed woodtuft No volva |
| ⚠ Substrate | Sulphur tuft Dead wood | Sheathed woodtuft On woodDead wood |
| Nutrition type | Sulphur tuft Saprotroph | Sheathed woodtuft Saprotroph |
| ⚠ Partner trees | Sulphur tuft OakBirchPineSpruce | Sheathed woodtuft OakBeechHornbeamAspenBirch |
📅 Seasonality
Sulphur tuft
Fruiting season
May – November
Sheathed woodtuft
Fruiting season
April – October
🔬 Morphology
Cap
Sulphur tuft
Cap 2–7 cm across, conical or bell-shaped in young mushrooms, then flattened. Sulphur yellow or egg-yolk yellow, often orange-brown in the center. Surface smooth, moist, without scales. Margin uneven, in young mushrooms joined to the stem by a cobwebby veil.
Sheathed woodtuft
The cap is 3-7 cm across, hemispherical with an inrolled edge in young mushrooms, later becoming convex to flat with a noticeable low bump. The color is two-toned: in wet weather the center is dark chestnut-brown and the edge pale ocher; in dry weather it's the other way around. The surface is smooth, slimy in wet weather. The cap skin peels off easily.
Hymenophore
Sulphur tuft
Gills crowded, yellow or yellow-green at first, then darkening to gray-green or brownish olive — this is the key feature that distinguishes it from the edible honey fungus (whose gills are whitish or cream). Spore print purplish brown.
Sheathed woodtuft
Gilled hymenophore: the gills are attached to the stem, moderately crowded. In young mushrooms they are pale beige, cream, darkening with age to brown, chocolate-brown as the spores ripen. The spore print is brown to rusty brown. In young mushrooms the gills are covered by a whitish partial veil.
Stem
Sulphur tuft
Stem thin, 4–10 cm tall, 0.4–0.8 cm thick, yellowish in the upper part, brownish or rusty below, fibrous. No ring, or a faint fibrous ring that soon disappears — the lack of a distinct ring sets it apart from honey fungus.
Sheathed woodtuft
The stem is 4-8 cm tall and 0.5-1 cm thick, cylindrical, often curved. Two-toned: in the upper part (above the ring) it is smooth, pale ocher-cream. In the lower part (below the ring) it is brownish-black, with distinct brown toothlike scales that stick outward. The ring is narrow, membranous, brownish; noticeable in young mushrooms, it may disappear in older ones.
Flesh
Sulphur tuft
Flesh yellowish, thin, bitter-tasting — very bitter when raw. But cooking removes the bitterness while the toxins remain, so in a finished dish the mushroom won't give itself away.
Sheathed woodtuft
The flesh is meaty in the cap, thin in the stem, creamy white to brownish cream. When cut it does not change color. The smell and taste are pleasantly mushroomy, with a nutty note.
Smell
Sulphur tuft
Smell mushroomy but indistinct, so it is of little help in identification.
Sheathed woodtuft
Pleasantly mushroomy with a nutty note. No chemical or mealy undertones, an extra diagnostic feature against Galerina, which has a faint mealy smell.
📍 Habitats
Sulphur tuft
Sheathed woodtuft
👀 Similar mushrooms — don't mix them up!
Honey fungus
Conditionally edibleVelvet shank
EdibleJack-o'-lantern mushroom
PoisonousSheathed woodtuft
EdibleConifer tuft
EdibleBrick tuft
InediblePlums and custard
Conditionally ediblePrunes and custard
InedibleChicken of the woods
EdibleSulphur tuft
PoisonousGolden scalycap
Conditionally edibleRingless honey fungus
Conditionally edibleDark honey fungus
Conditionally edibleBulbous honey fungus
Conditionally ediblePoplar fieldcap
Edible❓ Frequently asked questions
Can Sheathed woodtuft and Sulphur tuft be mixed up?
How to tell Sheathed woodtuft from Sulphur tuft?
Which is more dangerous — Sheathed woodtuft or Sulphur tuft?
Is Sulphur tuft edible?
When do Sheathed woodtuft and Sulphur tuft grow?
Sources
- [1]Атлас грибів України, Зеров Д.К. (1979)
- [2]GBIF
- [3]Вікіпедія (українська)
- [4]MycoBank Database
- [5]Index Fungorum
- [6]iNaturalist Ukraine