Yellow Stainer

Poisonous Poisonous
Autumn Autumn
Spring Spring
Summer Summer

Poisonous causing alarming symptoms but not effecting everybody. Don’t take a chance!

Mushroom Type
Common Names Yellow Stainer
Scientific Name Agaricus xanthodermus
Season Start Jul
Season End Nov
Average Mushroom height (CM) 16
Average Cap width (CM) 16
Please note that each and every mushroom you come across may vary in appearance to these photos.


Starting rounded this flattens to a shallow convex. White with very small scales. The cap bruises chrome yellow quite quickly.


Gills white turning pink becoming grey/brown. Crowded.


White/off-white with a skirt and slightly bulbous base.


Can have a pendulous skirt, this one is stained on the top surface by spores.


White bruising chrome yellow when cut especially at the base of the stem.


Hedgerows, grassland, open woodland and beside roads and paths usually in large groups or rings.

Spore Print

Purple/brown. Ellipsoid to ovoid.




7 comments for Yellow Stainer

  1. Bob Dutton says:

    Can field and yellow stainer grow in the same ring

    1. Poppy Ives says:

      They can be right beside each other, but not from the same organism.

  2. Eddie says:

    I have what I believe to be yellow strainers growing in my garden.
    How can I get rid of these?

    1. Eric Biggane says:

      I’m not sure how to get rid of them permanently, fungicides can damage the ecosystem of your garden. Place them in a bag and put them in your landfill bin to dispose of them.

  3. Only Me says:

    About 20 years ago I bought some of these from a local Garden Centre in Somerset believing them to be anything but Yellow Stainers. I started cooking them in a Risotto and the smell was very early on utterly disgusting! Very worrying how a garden centre can buy something wrongly identified by their wholesale provider.

  4. Patricia Smith says:

    Can I put yellow stainers in with my garden compost?

    1. Eric Biggane says:

      Yes as the compost should break any toxins down and these will not be transferred to any plants the compost is used on.

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