Sheathed woodtuft or Bulbous honey fungus
How they differ, how to recognize them and which is more dangerous — a mushroom comparison
The short answer
Sheathed woodtuft and Bulbous honey fungus are similar species: Sheathed woodtuft is edible, while Bulbous honey fungus is conditionally edible. The main visible difference: season: Sheathed woodtuft — spring, summer, autumn, Bulbous honey fungus — summer, autumn. The mushrooms also differ in the following features: use, size, cap color.

Sheathed woodtuft
Kuehneromyces mutabilis

Bulbous honey fungus
Armillaria gallica
📊 Comparing characteristics
| Characteristic | Sheathed woodtuft | Bulbous honey fungus |
|---|---|---|
| Edibility class | Sheathed woodtuft Edible | Bulbous honey fungus Conditionally edible |
| Season | Sheathed woodtuft SpringSummerAutumn | Bulbous honey fungus SummerAutumn |
| Use | Sheathed woodtuft Cook freshDryingPickling | Bulbous honey fungus Cook freshPicklingSalting |
| Size | Sheathed woodtuft Small (up to 5 cm) | Bulbous honey fungus Medium (5–15 cm) |
| Cap color | Sheathed woodtuft BrownCreamYellow | Bulbous honey fungus YellowBrownOrange |
| Cap shape | Sheathed woodtuft Convex | Bulbous honey fungus ConvexFlat |
| Cap surface | Sheathed woodtuft Smooth | Bulbous honey fungus ScalyFibrous |
| Taste | Sheathed woodtuft Mild | Bulbous honey fungus Mild |
| Smell | Sheathed woodtuft Pleasant | Bulbous honey fungus Pleasant |
| Flesh color change | Sheathed woodtuft No change | Bulbous honey fungus No change |
| Hymenophore | Sheathed woodtuft Gilled | Bulbous honey fungus Gilled |
| Stem | Sheathed woodtuft Central | Bulbous honey fungus Central |
| Ring (veil) | Sheathed woodtuft Ring present | Bulbous honey fungus Ring remnants |
| Volva | Sheathed woodtuft No volva | Bulbous honey fungus No volva |
| Substrate | Sheathed woodtuft On woodDead wood | Bulbous honey fungus Dead woodLiving tree |
| Nutrition type | Sheathed woodtuft Saprotroph | Bulbous honey fungus SaprotrophParasite |
| Partner trees | Sheathed woodtuft OakBeechHornbeamAspenBirch | Bulbous honey fungus OakBeech |
📅 Seasonality
Sheathed woodtuft
Fruiting season
April – October
Bulbous honey fungus
Fruiting season
August – October
🔬 Morphology
Cap
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.
Bulbous honey fungus
The cap of the bulbous honey fungus reaches 3 to 10 centimeters in diameter. When young it is convex-bell-shaped; with age it opens out to flat. The surface is covered with small, thin fibrous scales, especially in the center, and becomes smoother in wet weather. The color is yellowish brown, honey brown or ocher, darker in the center; the margin is paler, often with a reddish tinge. In dry weather the color fades noticeably.
Hymenophore
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.
Bulbous honey fungus
The hymenophore is gilled. The gills are whitish or cream, developing yellowish-reddish spots with age, attached to the stem or running slightly down it. The spore print is white. Pale gills that turn brownish with age, together with the weak cobwebby ring, help you recognize this species.
Stem
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.
Bulbous honey fungus
The stem is the most distinctive feature of the species: cylindrical, with a noticeably thickened, bulbous base, 5 to 12 centimeters tall. It is yellowish brown at the top and paler toward the bottom. The ring is weak, cobwebby-membranous, yellowish, and often disappears quickly, leaving only a fibrous band. It is precisely the swollen stem base that gave the mushroom its folk name, «thick-legged». There is no volva.
Flesh
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.
Bulbous honey fungus
The flesh is whitish, rather thin in the cap and fibrous in the stem. It barely changes color when cut. Raw flesh tastes acrid, so the mushroom must always be thoroughly boiled before eating, after which the taste becomes mild. The quality of the flesh is somewhat lower than in honey fungus, so young caps are chosen for the table.
Smell
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.
Bulbous honey fungus
The smell is faint, pleasant, somewhat sweetish, sometimes with a cheesy hint. The scent is not a defining feature, so for identification rely on the bulbous, swollen stem base, the weak cobwebby ring, the honey-colored scaly cap and its growth on the wood of broadleaf trees.
📍 Habitats
Sheathed woodtuft
Bulbous honey fungus
👀 Similar mushrooms — don't mix them up!
Honey fungus
Conditionally edibleSulphur tuft
PoisonousGolden scalycap
Conditionally edibleRingless honey fungus
Conditionally edibleDark honey fungus
Conditionally edibleBulbous honey fungus
Conditionally ediblePoplar fieldcap
EdibleConifer tuft
EdibleSheathed woodtuft
EdibleSpindle toughshank
Conditionally edible❓ Frequently asked questions
Can Sheathed woodtuft and Bulbous honey fungus be mixed up?
How to tell Sheathed woodtuft from Bulbous honey fungus?
Is Bulbous honey fungus edible?
When do Sheathed woodtuft and Bulbous honey fungus grow?
Sources
- [1]Вікіпедія (українська)
- [2]Атлас грибів України, Зеров Д.К. (1979)
- [3]MycoBank Database
- [4]Index Fungorum
- [5]GBIF
- [6]iNaturalist Ukraine