Fly agaric: what it looks like from young to old, in photos

The fly agaric is a poisonous mushroom with a bright red cap covered in white flakes, white gills, a white stem with a skirt-like ring and a bulb at the base. It grows from July to October under pines, birches and spruces. We don't recommend eating it: it contains ibotenic acid and muscimol, which affect the nervous system.

You might think there's nothing to teach here: every child recognises this mushroom. But a fly agaric changes several times over its life. A young one looks like a red ball in the sand, after rain it becomes almost smooth, and an old one fades to orange. We photographed it at all these stages in pine forests in the autumns of 2025 and 2026.

What the fly agaric looks like

In brief, here is what makes up a fly agaric:

• Cap 8–20 cm, at first globular to egg-shaped, then convex and almost flat. Bright red or orange-red, covered in wart-like flakes.
• Gills white, crowded, free from the stem. The spore print is white too.
• Stem white, tall, with a membranous ring near the top.
• Base swollen like a bulb, with several bands of white scales. These are the remains of the volva, and they are often in the ground.
• Flesh white, yellowish under the cap skin, with no noticeable smell.

From the side you can see it all best: a bright cap with white dots and a pale stem emerging from the pine needles.

Young fly agaric: a red ball in the sand

A fly agaric is born inside a universal veil, as if in a white shell. As the mushroom grows, the veil cracks, and its shreds stay on the cap as those very white flakes. A young fly agaric is globular and firm and often carries sand and pine needles up with it from underground.

In the photo below, a young fly agaric is literally lifting a clump of sand, and behind it stands a mature mushroom with an open cap.

Another young fly agaric in a pine forest: a domed red cap strewn with white flakes and pine debris, a cone beside it. The stem is still short, and the ring is hidden under the cap.

Mature fly agaric: warts and a skirt-like ring

With age the cap opens, and the flakes spread out over it like polka dots. Where the veil was thick, they become raised warts. This is the classic fairy-tale fly agaric: a cap densely strewn with white on a sturdy white stem.

Under the cap, a young mushroom has another film that covers the gills. When the cap opens, this film tears away and hangs on the stem as a skirt-like ring. In the fly agaric it is white, often with a yellowish edge. You can see the ring on a mature fly agaric with a flat cap under pine branches.

Up close, the cap of the fly agaric is glossy, and the white flakes lie on it as separate patches that are easy to rub off with a finger. This is not a pattern in the skin, but the remains of the veil.

A fly agaric without “polka dots”, and an old fly agaric

This is where the surprises begin. The flakes on the cap are only loosely attached, and rain washes them off almost entirely. Then the fly agaric stands in the moss smooth, with a couple of white dots, and no longer looks so much like a picture from a children's book.

Here is one among moss and lingonberry: a round red cap, a few white dots and a pale stem. If you don't know that the flakes wash off, it's easy to decide this is some “other” red mushroom.

With age the cap straightens out and becomes flat, and the flakes fall off. From above, an old fly agaric shows only a few scattered dots, and pine needles and sand collect in the centre of the cap. Next to it in the photo is the small brown cap of another mushroom.

And this is an old fly agaric whose cap has faded to orange. What gives it away are the white dots that still remain and the yellowish ring on the stem. Faded mushrooms like this are the ones most often confused with Caesar's mushroom, more on which below.

Where and when the fly agaric grows

The fly agaric forms mycorrhiza, which means it lives in partnership with tree roots. Most often these are pine, birch and spruce, so look for it in pine forests, birch woods and mixed forests. It fruits from July to October, and in a warm autumn it also turns up in November. It is most abundant in autumn.

Very often the fly agaric is the first to give itself away from a distance. In a young pine wood with birches, its red dot shows between the trunks before any other mushroom.

Closer up it looks like this: a bright autumn pine forest, needles, moss and a vivid cap with white dots on a white stem.

A typical spot for the fly agaric is dry pine litter with cones. This is exactly the kind of litter the fly agaric shown from the side at the top of the article was growing in.

Fly agarics rarely grow alone. Where you find one, there are usually several, all of different ages: from small domed caps to wide-open ones.

The same group from above. The big cap still has its flakes, while the younger mushrooms beside it are already almost smooth, although they are one and the same species.

They also turn up in grassy spots among the forest litter. Here there are three fly agarics at once, all in classic white “polka dots”.

Why the fly agaric is poisonous

The main toxic substances in the fly agaric are ibotenic acid and muscimol. They act on the nervous system. The first symptoms usually appear after 30–90 minutes, sometimes later: nausea and vomiting, dizziness, confusion, agitation or, conversely, drowsiness, hallucinations. In severe cases there may be seizures and deep unconsciousness, up to coma. Most people recover within a day, and deaths are very rare, but this kind of poisoning needs medical care. In young children it is more often accompanied by seizures than in adults.

What you should know about boiling and drying:

• Boiling really does reduce the toxicity. Ibotenic acid and muscimol dissolve readily in water. In laboratory experiments by Japanese scientists, most of both substances passed into the water during boiling or soaking, whereas ordinary short cooking, up to 10 minutes, barely reduced their content. So everything depends on the cooking water being poured off. Boiled fly agaric was traditionally eaten in certain areas of Japan, Russia, Lithuania and North America; these accounts were collected by the researchers William Rubel and David Arora.
• But there is no guarantee of safety. How long exactly to boil it, how much water to use and whether to change it has still not been studied systematically, and even Rubel and Arora, who do eat boiled fly agaric, acknowledge this. The toxin content varies from mushroom to mushroom, depending on the place and the time of year. Too little water, too short a boil, cooking water not poured off — and a person gets poisoned. The food authorities of the USA and Germany consider the fly agaric unsafe to eat, so we don't recommend it either.
• Drying doesn't help — quite the opposite. During drying and heating, ibotenic acid is partly converted into muscimol, which acts on the nervous system several times more strongly. So a dried fly agaric can turn out to be even more dangerous than a fresh one.
• The biggest risk is getting the species wrong. Anyone who gets used to “boiling out” amanitas may sooner or later pick a deadly poisonous one, such as the death cap. Its toxin is heat-stable: neither boiling nor drying destroys it.

A separate word about the fashion for fly agaric “microdosing”, which is now heavily promoted on social media. We don't support it and don't recommend it to anyone. On 18 December 2024, the US Food and Drug Administration (FDA) announced that the fly agaric and its constituents, including muscimol and ibotenic acid, do not meet the safety standard for food and may harm health, so they must not be added to food. This came after a wave of poisonings in the USA from “mushroom” chocolate bars and gummies: in some of them, the FDA laboratory found muscimol alongside other psychoactive substances. In June 2025, the German Federal Institute for Risk Assessment (BfR) warned about muscimol gummies: poison centres had reported poisonings with confusion and clouding of consciousness, up to coma, and children may mistake such “sweets” for ordinary candy and eat more of them than adults.

If someone has eaten a fly agaric, call emergency services (112 in the EU, 103 in Ukraine) without waiting for symptoms. What to do until the doctors arrive, we've set out in the article mushroom poisoning: symptoms and first aid.

How not to confuse it with Caesar's mushroom and red brittlegills

Caesar's mushroom also has an orange-red cap, a ring and a volva. Telling them apart is easy if you look below the cap:

• in Caesar's mushroom the gills, stem and ring are yellow, in the fly agaric they are white;
• Caesar's mushroom has a large white sac-like volva at the base, the fly agaric has a bulb with bands of scales;
• Caesar's mushroom's cap is usually smooth, without flakes, but remember: after rain the fly agaric can be smooth too.

In Ukraine, Caesar's mushroom is rare and listed in the Red Book of Ukraine as endangered, so in Ukraine it must not be picked under any circumstances.

Red brittlegills have neither a ring nor a bulb or sac at the base. Their stem snaps like chalk, and the flesh is brittle. But among red brittlegills there are inedible and poisonous ones too, such as the sickener. We explained how to tell them apart in the article which brittlegills are poisonous.

Among amanitas with the same toxin, the brownish panther cap is more dangerous than the fly agaric: it contains more toxin and is less conspicuous. Read about the whole family in the overview amanitas of Ukraine, from deadly to edible.

Myths about the fly agaric

Let's start with the most common one: “if animals and slugs eat it, people can too”. No. Animals and slugs tolerate mushroom toxins quite differently from humans. Look at this young fly agaric among fallen oak leaves: someone has already nibbled the edge of the cap, and that hasn't made the mushroom one bit safer.

The same shot also debunks another myth, that the fly agaric grows only among pines. It likes pine and birch, but it also turns up in mixed forests with oak. The other popular misconceptions:

• “No white dots, no fly agaric”. Rain washes the flakes off, and on old mushrooms they fall away. Look at the white gills, the ring and the swollen base.
• “Boil it several times and it's fine to eat”. Boiling and pouring off the water really does draw most of the toxin into the cooking water, but no one knows in advance how much there was in a particular mushroom and how much remains, so it gives no guarantee of safety.
• “The fly agaric is the most terrifying mushroom in the forest”. In fact, most deaths are caused by the inconspicuous death cap, not the bright fly agaric.

We've taken apart other folk signs that don't work in the article myths about spotting poisonous mushrooms.

The fly agaric is the jewel of the autumn forest. Admire it, photograph it, but leave it where it grew: the trees it lives with need it.