How to tell Greencracked brittlegill from Death cap
How they differ, how to recognize them and which is more dangerous — a mushroom comparison
Warning: Death cap(Amanita phalloides)
DEADLY POISONOUS
Eating it can cause death. Do not pick it and do not taste it.
Contains amatoxins (α-amanitin), which block RNA polymerase II, causing necrosis of liver and kidney cells.
The first symptoms (nausea, vomiting, diarrhea) appear 6–24 h after eating, most often after 8–12. Then, around the second day, comes a deceptive improvement. After that, from the third day, acute liver failure sets in.
At the slightest suspicion — go to the hospital immediately. A specific drug does exist: intravenous silibinin, registered in Ukraine precisely for death cap poisoning. But it hasn't turned out to be a magic antidote — controlled studies have never proven its effectiveness. Most of the work is done by simpler things: many hours of IV drips, sorbents, intensive care, and in the most severe cases a liver transplant. The sooner you get to the hospital, the more options the doctors have.
If you suspect poisoning, call an ambulance immediately: 112 (the European emergency number) or your local emergency number
The short answer
Greencracked brittlegill and Death cap look alike, so they're easy to mix up — but Greencracked brittlegill is edible, while Death cap is deadly poisonous. The main visible difference: use: Greencracked brittlegill — culinary, cook fresh, salting, Death cap — not eaten. The mushrooms also differ in the following features: cap color, cap shape, cap surface. If you have even the slightest doubt, leave the mushroom be.

Death cap
Amanita phalloides

Greencracked brittlegill
Russula virescens
📊 Comparing characteristics
⚠ Highlighted rows are the key differences between the edible and the dangerous mushroom
| Characteristic | Death cap | Greencracked brittlegill |
|---|---|---|
| ⚠ Edibility class | Death cap Deadly poisonous | Greencracked brittlegill Edible |
| Season | Death cap SummerAutumn | Greencracked brittlegill SummerAutumn |
| ⚠ Use | Death cap Not eaten | Greencracked brittlegill CulinaryCook freshSalting |
| Size | Death cap Medium (5–15 cm) | Greencracked brittlegill Medium (5–15 cm) |
| ⚠ Cap color | Death cap GreenOlivePale yellow | Greencracked brittlegill GreenOlive |
| ⚠ Cap shape | Death cap ConvexFlat | Greencracked brittlegill ConvexFlatConcave |
| ⚠ Cap surface | Death cap SmoothFibrous | Greencracked brittlegill Dry |
| ⚠ Taste | Death cap Neutral taste | Greencracked brittlegill Mild |
| ⚠ Smell | Death cap HoneyNeutral | Greencracked brittlegill Pleasant, mushroomy |
| Flesh color change | Death cap No change | Greencracked brittlegill No change |
| Hymenophore | Death cap Gilled | Greencracked brittlegill Gilled |
| ⚠ Stem | Death cap CentralBulbous | Greencracked brittlegill CentralSolid |
| ⚠ Ring (veil) | Death cap Ring present | Greencracked brittlegill No ring |
| ⚠ Volva | Death cap Volva present | Greencracked brittlegill No volva |
| Substrate | Death cap Soil | Greencracked brittlegill Soil |
| Nutrition type | Death cap Mycorrhizal | Greencracked brittlegill Mycorrhizal |
| ⚠ Partner trees | Death cap OakBeechBirch | Greencracked brittlegill OakBirch |
📅 Seasonality
Death cap
Fruiting season
July – October
Greencracked brittlegill
Fruiting season
June – September
🔬 Morphology
Cap
Death cap
The death cap's cap is 5–15 cm across. In young mushrooms it is hemispherical, later becoming flat and spread out.
The color varies from olive green and yellowish green to grayish and almost white — which is what makes identification tricky. The surface is smooth, slightly slimy in wet weather, with a characteristic radial pattern of darker fibers spreading from the center. The cap margin is even, without striations.
Greencracked brittlegill
Cap 5–15 cm across, spherical in young mushrooms, then flat or slightly depressed. The surface is matte, dry, cracked into small polygonal patches — a characteristic “mosaic” pattern. Color green, grayish green, sometimes with yellowish or grayish zones. The margin is blunt.
Hymenophore
Death cap
The hymenophore is lamellate. The gills are crowded, thin and free — not attached to the stem. In both young and mature mushrooms they stay pure white — this is a critical diagnostic feature.
Not a hint of pink, cream or ochre, as in true Agaricus mushrooms. The gap between the gills and the stem is clearly defined. The veil is white and membranous, completely covering the hymenophore in young specimens.
Greencracked brittlegill
Gills crowded, even, brittle, white. They don't change color when damaged. Spore print white. The gills snap easily under your finger — the brittleness typical of the genus Russula.
Stem
Death cap
The stem is slender, 7–15 cm tall and 1–2 cm thick. Cylindrical, widening at the base into a characteristic club-shaped bulb wrapped in a membranous sack-like volva — the main diagnostic feature.
The color is whitish green, often with a snakeskin pattern of faint bands. In the upper third there's a well-developed, hanging white ring with remnants of the veil. The surface below the ring is faintly scaly.
Greencracked brittlegill
Stem 4–10 cm tall, 1.5–3 cm thick, firm, evenly cylindrical or slightly narrowing toward the base. The surface is white, smooth or slightly wrinkled. No ring and no volva — an important safety feature.
Flesh
Death cap
The flesh is white and doesn't change color when cut — and that's the treacherous part: none of the safety signs foragers are used to relying on work here. The flesh is thin and brittle in the cap, fleshy at the base of the stem.
It doesn't change color on contact with air, neither after a minute nor after an hour. No "lovely white flesh" should reassure you — it's precisely in the white flesh of the death cap that the concentration of amanitins is highest.
Greencracked brittlegill
Flesh firm, white, crunchy, crumbles easily — the so-called “brittlegill” brittleness. It doesn't change color when damaged and releases no milk. The taste is mild and nutty, without bitterness — one of the few brittlegills that can be eaten raw without danger.
Smell
Death cap
The smell of a fresh mushroom is faint and hard to notice; in young specimens it's almost absent. Mature ones develop a slight sickly-sweet note, like wilted honey or stale dough.
This aroma isn't distinct enough to warn an inexperienced forager. Like other poisonous amanitas (the fly agaric, the panther cap), the death cap has only a faint, indistinct smell that gives no warning — yet another treacherous trait. A stronger odor appears only in rotting specimens.
Greencracked brittlegill
Smell unobtrusive, pleasant, faintly nutty. It lacks the sharp or unpleasant notes typical of some poisonous brittlegills. When cooked, the aroma grows stronger, taking on warm woodland notes.
📍 Habitats
Death cap
Greencracked brittlegill
👀 Similar mushrooms — don't mix them up!
Chanterelle
EdiblePorcini
EdibleGreencracked brittlegill
EdibleField mushroom
EdibleParasol mushroom
EdibleCommon stinkhorn
EdibleStubble rosegill
Conditionally edibleVolvariella hypopithys
UnknownSilky rosegill
EdibleIvory woodwax
EdibleImperial mushroom
EdibleAmanita battarrae
Conditionally edibleCaesar's mushroom
EdibleDestroying angel
Deadly poisonousFalse death cap
InedibleAgaricus abruptibulbus
EdibleWood mushroom
EdibleTawny grisette
Conditionally edibleGrisette
Conditionally edibleBrown puffball
EdibleGreen brittlegill
EdibleGreasy green brittlegill
EdibleCharcoal burner
EdiblePaddy straw mushroom
EdibleDeath cap
Deadly poisonousBare-toothed russula
EdibleCopper brittlegill
EdibleGilded brittlegill
Edible❓ Frequently asked questions
Can Greencracked brittlegill and Death cap be mixed up?
How to tell Greencracked brittlegill from Death cap?
Which is more dangerous — Greencracked brittlegill or Death cap?
Is Death cap edible?
When do Greencracked brittlegill and Death cap grow?
Sources
- [1]Атлас грибів України, Зеров Д.К. (1979)
- [2]MycoBank Database
- [3]GBIF