Giant puffball or Pestle puffball
How they differ, how to recognize them and which is more dangerous — a mushroom comparison
The short answer
Giant puffball and Pestle puffball are similar species that can be mixed up while foraging. The main visible difference: use: Giant puffball — culinary, cook fresh, Pestle puffball — cook fresh, drying, pickling. The mushrooms also differ in the following features: cap color, cap shape, cap surface.

Giant puffball
Calvatia gigantea

Pestle puffball
Lycoperdon excipuliforme
📊 Comparing characteristics
| Characteristic | Giant puffball | Pestle puffball |
|---|---|---|
| Edibility class | Giant puffball Edible | Pestle puffball Edible |
| Season | Giant puffball SummerAutumn | Pestle puffball SummerAutumn |
| Use | Giant puffball CulinaryCook fresh | Pestle puffball Cook freshDryingPickling |
| Size | Giant puffball Large (over 15 cm) | Pestle puffball Large (over 15 cm) |
| Cap color | Giant puffball White | Pestle puffball WhiteCreamBrown |
| Cap shape | Giant puffball Convex | Pestle puffball Cylindrical |
| Cap surface | Giant puffball Smooth | Pestle puffball Scaly |
| Taste | Giant puffball Mild | Pestle puffball Mild |
| Smell | Giant puffball Neutral | Pestle puffball Pleasant |
| Flesh color change | Giant puffball Yellowing | Pestle puffball Yellowing |
| Hymenophore | Giant puffball — | Pestle puffball Chambered |
| Stem | Giant puffball Absent | Pestle puffball Central |
| Ring (veil) | Giant puffball No ring | Pestle puffball No ring |
| Volva | Giant puffball No volva | Pestle puffball No volva |
| Substrate | Giant puffball Soil | Pestle puffball SoilForest litter |
| Nutrition type | Giant puffball Saprotroph | Pestle puffball Saprotroph |
📅 Seasonality
Giant puffball
Fruiting season
July – September
Pestle puffball
Fruiting season
August – November
🔬 Morphology
Cap
Giant puffball
Fruit body globular or slightly flattened, with no distinction between cap and stem — from the outside it looks like a big white ball or a loaf of bread. Surface smooth, leathery, white at first, then yellowing and browning; in mature ones it cracks and peels.
Pestle puffball
Fruiting body skittle-shaped, 10-20 (up to 30) cm tall, 4-10 cm wide at the top. The upper (fertile) part is a round or egg-shaped head with a rounded tip; the lower (sterile) part is a cylindrical, elongated “stalk”. Color: young ones are white, later cream, then yellowish brown. The surface is smooth or finely warty at first, later cracking into coarser scales, and the top opens to expose the spore mass.
Hymenophore
Giant puffball
Internal hymenophore: the spores form inside the fruit body (gasteromycete development). In young mushrooms the firm gleba — the flesh — is pure white and uniform throughout. As it matures, it turns into a yellow-green mass of spores — a powder that disperses through cracks in the skin.
Pestle puffball
The hymenophore is internal (gleba), as in all puffballs. The young gleba is white, dense and uniform. With age it turns yellow, then green, then becomes a dark olive-brown powdery mass of spores. Spore print dark olive-brown.
Stem
Giant puffball
There is no stem in the classic sense. The fruit body is attached to the soil by thin white mycelial cords. The lower part may be slightly narrowed, forming a pseudostem.
Pestle puffball
Not a separate part — the fruiting body is one piece, skittle-shaped. The “stalk” is the lower sterile part of the same fruiting body, cylindrical, white, scaly in old ones. There is no ring.
Flesh
Giant puffball
Flesh (gleba) evenly white when young, firm, juicy, with no cavities. Taste delicate, slightly nutty. Once yellowness or an ammonia smell appears, eating it is out of the question — such a mushroom is already toxic.
Pestle puffball
The flesh in young ones is white, uniform and firm, with a delicate taste reminiscent of chicken breast. With age it turns yellow, then green, and becomes a spore mass. Check before cooking: if the cut shows uniform white — it's good; any yellowish or greenish tint — throw it out.
Smell
Giant puffball
A young mushroom smells pleasant, unobtrusive, slightly mealy. Mature and overripe specimens have a sharp, spicy, ammonia smell — a signal that the mushroom is no longer edible.
Pestle puffball
A faint, pleasant mushroomy smell. The taste is mild and delicate.
📍 Habitats
Giant puffball
Pestle puffball
👀 Similar mushrooms — don't mix them up!
❓ Frequently asked questions
Can Giant puffball and Pestle puffball be mixed up?
How to tell Giant puffball from Pestle puffball?
Is Pestle puffball edible?
When do Giant puffball and Pestle puffball grow?
Sources
- [1]Атлас грибів України, Зеров Д.К. (1979)
- [2]GBIF
- [3]Вікіпедія (українська)
- [4]MycoBank Database
- [5]Index Fungorum
- [6]iNaturalist Ukraine