Yellow Stainer - Agaricus xanthodermus

The cap is white and may have lobed edges. It is often smooth except for the centre which is usually slightly scaly. Cap width is 5 to 10 cm. The name derives from the fact that if the fungus is bruised or scratched a bright yellow stain will appear. A good test is to cut open the base of the stem and if it stains a strong yellow colour it is a likely to be Agaricus xanthodermus.

Grassland, parks etc and under broadleaved trees.

Late summer to late autumn.

Although this species looks very similar to some edible mushrooms it is poisonous and should not be eaten.

Fairly common and widespread in Britain.

Fairly frequent in Leicestershire and Rutland.