Elfin saddle or Helvella monachella
How they differ, how to recognize them and which is more dangerous — a mushroom comparison
The short answer
Elfin saddle and Helvella monachella are similar species that can be mixed up while foraging. The main visible difference: season: Elfin saddle — autumn, Helvella monachella — spring, summer, autumn. The mushrooms also differ in the following features: size, cap color, smell.

Elfin saddle
Helvella lacunosa

Helvella monachella
Helvella monachella
📊 Comparing characteristics
| Characteristic | Elfin saddle | Helvella monachella |
|---|---|---|
| Edibility class | Elfin saddle Inedible | Helvella monachella Inedible |
| Season | Elfin saddle Autumn | Helvella monachella SpringSummerAutumn |
| Use | Elfin saddle Not eaten | Helvella monachella Not eaten |
| Size | Elfin saddle Medium (5–15 cm) | Helvella monachella Small (up to 5 cm) |
| Cap color | Elfin saddle GreyBlackDark brown | Helvella monachella BrownDark brownWhite |
| Cap shape | Elfin saddle Irregular | Helvella monachella Irregular |
| Cap surface | Elfin saddle Smooth | Helvella monachella Smooth |
| Taste | Elfin saddle Unknown | Helvella monachella Unknown |
| Smell | Elfin saddle Odorless | Helvella monachella Chemical |
| Flesh color change | Elfin saddle No change | Helvella monachella No change |
| Hymenophore | Elfin saddle Smooth | Helvella monachella Smooth |
| Stem | Elfin saddle Central | Helvella monachella Central |
| Ring (veil) | Elfin saddle No ring | Helvella monachella No ring |
| Volva | Elfin saddle No volva | Helvella monachella No volva |
| Substrate | Elfin saddle Soil | Helvella monachella Soil |
| Nutrition type | Elfin saddle Saprotroph | Helvella monachella Saprotroph |
📅 Seasonality
Elfin saddle
Fruiting season
September – November
Helvella monachella
Fruiting season
March – October
🔬 Morphology
Cap
Elfin saddle
Cap 3-5 cm, irregularly saddle-shaped, with 2-4 lobes. Color dark gray, graphite, almost black in old specimens. Surface smooth, with a silky sheen in wet weather. Margins wavy and contorted. Partly fused to the stem at the top.
Helvella monachella
Cap 2-4 cm, saddle-shaped, with 2-3 vertical lobes. The upper (outer) surface is gray-chestnut-brown, dark, with a silky sheen. The underside is white, and the contrast is visible from afar. The margins are wavy and uneven. This is the species' calling card — a two-toned saddle-shaped cap.
Hymenophore
Elfin saddle
Smooth hymenium on the upper (outer) surface of the cap lobes. Ascomycete structure — spores form in asci. Spore print white. Spores ellipsoid, smooth, 17-20 × 10-13 µm.
Helvella monachella
A smooth hymenium on the upper (darker) surface of the cap lobes. An ascomycete structure — spores mature in asci. Spore print white. Spores ellipsoid, smooth, typical of the genus.
Stem
Elfin saddle
Stem up to 6 cm tall, 1-2 cm thick, cylindrical, hollow inside. Color pale gray, darkening toward the base. Surface with prominent lengthwise ribs and distinctive pits (lacunae) — hence the name. The ribbed structure is like that of crispa, but the color is completely different.
Helvella monachella
Stem 2.5-4.5 cm tall, 3-7 mm thick, cylindrical, widening at the base. White, smooth, without pronounced ribs. Hollow inside.
Flesh
Elfin saddle
The flesh is thin, waxy and brittle, grayish white. Doesn't change color when cut. Fragile texture.
Helvella monachella
The flesh is thin, waxy-brittle, white. Does not change color when cut. It has a strong unpleasant smell — a diagnostic feature of the species.
Smell
Elfin saddle
Faint mushroomy smell, no sharp notes. We don't taste it — potentially toxic.
Helvella monachella
A distinct unpleasant smell of the flesh is one of the key diagnostic features. It is described as «musty» or «chemical». We don't taste it — it is inedible and red-listed.
📍 Habitats
Elfin saddle
Helvella monachella
👀 Similar mushrooms — don't mix them up!
❓ Frequently asked questions
Can Elfin saddle and Helvella monachella be mixed up?
How to tell Elfin saddle from Helvella monachella?
Is Helvella monachella edible?
When do Elfin saddle and Helvella monachella grow?
Sources
- [1]Вікіпедія (українська)
- [2]Атлас грибів України, Зеров Д.К. (1979)
- [3]MycoBank Database
- [4]Index Fungorum
- [5]GBIF
- [6]iNaturalist Ukraine