Identify Horse Mushrooms

Horse Mushroom/ Summer / Autumn / Edible

Common Name
Horse Mushroom


Botanical Name
Agaricus Arvensis

Meaning of Botanical Name
Arvensis means field which is where these mushrooms grow


Known Hazards
Can accumulate heavy metals such as copper

Could be confused with
Yellow Stainer, (Agaricus Xanthoderma) this mushroom stains quickly bright yellow when touched, cut or bruised, the horse mushroom stains slightly yellow and its a slow reaction, it also smells very unpleasantly of iodine whereas the horse mushroom smells of aniseed.

Food Plant of
Humans, mammals, and many invertebrates and insects.

Range and Distribution
the Horse Mushroom is a common mushroom in Britain and Ireland as well mainland Europe and parts of Asia and North America, the Horse Mushroom has also been found in Australia as well as New Zealand

This is a saprophytic mushroom (meaning it lives on decaying organic matter) it loves well-manured pastures and grassland, often growing in rings.

Physical Characteristics
The  cap is a creamy white colour, dome-shaped when young and flattening out with age
Gills start off pale salmon pink and turn dark chocolate brown and eventually black with age, they are crowded and free of the stem.
The stem has a double ring (skirt) which when still attached to the cap looks like a cogwheel pattern.
Flesh stains a pale yellow colour when bruised.
Strong aniseed smell.

Edible Use
Delicious edible mushroom, good for frying, stews, pate, etc.