Yellow Stainer

Agaricus

The Yellow Stainer is a mushroom that changes color when you touch it! It's a fun one to spot in the wild.

Habitat: In fields and meadows

Appearance

The Yellow Stainer is a medium-sized mushroom with a smooth, white cap that can turn slightly yellow with age. Its gills start pink and darken to a chocolate brown. A key identifying feature is its bright yellow stain when the cap or stem is bruised, especially at the base.

KingdomFungiPhylumBasidiomycotaClassAgaricomycetesOrderAgaricalesFamilyAgaricaceaeGenusAgaricus

Yellow Stainer

Interesting facts

Despite its innocent look, it’s one of the most common causes of mushroom poisoning.

If you try to cook this mushroom, its unpleasant chemical smell gets even stronger!

It often grows in circles in lawns, sometimes called “fairy rings.”

Its scientific name, Agaricus xanthodermus, means “yellow skin mushroom.”

Special abilities

Yellow Stainer can change its color to bright yellow when touched, because it has special chemicals that react with air.

Yellow Stainer has a unique, unpleasant ink-like smell that helps warn animals it's not good to eat.

Yellow Stainer produces millions of dark brown spores that help it spread its babies far and wide to new places.

Measurements & details

Height: 6-12 cm
Edibility: poisonous
Cap Diameter: 5-15 cm
Growth Substrate: soil
Season: Summer, fall
Spore Color: Dark brown

Ecological connections

depends on

English oak

Quercus robur

Feeds on decaying leaf litter around its roots in woodland areas.

eaten by

Black slug

Arion ater

Some slugs are sometimes seen munching on its cap.

shelters

Annual bluegrass

Poa annua

Often grows in lawns near this common type of grass.

Traits

Deciduous

Discover the magic of plants that shed all their leaves during a particular season, often putting on a spectacular show of fall colors first. They get ready for a fresh start!

Spore Producing

Discover how some plants and fungi create tiny little "seeds" called spores to help them grow new life! These tiny particles drift in the air, spreading new generations far and wide.

Grassland

These wide-open spaces are covered in grasses, often home to grazing animals and incredible predators! Experience the vastness of the plains.

Decomposer

Meet the cleanup crew of nature! These vital organisms help break down dead things, returning nutrients to the soil and keeping our ecosystems healthy.