Species details

Fly agaric

Amanita muscaria

Poisonous
Fly agaric – Amanita muscaria

Photo: MartinThoma · CC0 · Photo source · License

Description

A red to orange amanita with white warts, white gills, a ring, and a bulbous base.

Identification features

Rain may wash away the white warts. Ring-like veil remnants often surround the base, and old cap margins are striate.

Identification checklist

The cap is usually red to orange-red with white veil patches that rain may wash away. Gills and stem are white, with a ring on the stem and several bands of volval remnants around the bulbous base.

Detailed features

Cap
Bright red to orange-red, often with white veil patches; rain may wash some or all of them away.
Hymenophore
Gills are white to slightly yellowish, crowded and free.
Stem
White and long, with a ring and enlarged base bearing ragged or ring-like veil remnants.
Flesh
White, sometimes yellowish immediately beneath the red cap skin.
Spore print
White.

Size

Cap diameter
8–20 cm
Stem height
10–25 cm
Stem diameter
1–3 cm

Habitat

Mycorrhizal with birch, spruce, pine, and other trees on acidic soil.

Fruiting period

July, August, September, October, November

Ecology

Trophic mode
Mycorrhizal
Host trees
Birch (Betula), Pine (Pinus), Spruce (Picea)

Distribution

Notes
A very distinctive species widespread in Europe and other parts of the Northern Hemisphere.

How to separate similar species

Caesar’s mushroom has a smooth orange-red cap with yellow gills, ring, and stem. Panther cap has a brown cap with white patches. Absence of white spots does not rule out fly agaric.

Similar species

Interesting facts

Did you know? The white spots are not a reliable feature on their own because rain can wash them away.

Extended-description sources