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Grey Oyster Mushroom

Edible Edible
Autumn Autumn
Spring Spring
Summer Summer
Winter Winter

Fairly common but localised. Can be found in large numbers at any time of year.

Mushroom Type
Common Names Grey Oyster Mushroom
Scientific Name Pleurotus ostreatus
Season Start All Year
Season End All Year
Average Mushroom height (CM) 0
Average Cap width (CM) 15
Please note that each and every mushroom you come across may vary in appearance to these photos.

Cap

Convex and shell-shaped when young opening out flatter with wavy, sometimes split edges. Smoky grey/silver/brown.

Gills

White but turning slightly yellow and running most of the way down the stem. Crowded.

Stem

White and opening out to the cap when present as sometimes the cap appears to comes straight from the tree.

Flesh

White. Tough in the stem.

Habitat

Deciduous trees, particularly beech. Grows in large shelf-like clusters on stumps and fallen wood.

Possible Confusion

Other oyster mushrooms which can be pink, white, pictured, or yellow. These are all edible.
Oysterlings look similar but never grow more than four centimetres across.
Angels Wings, Pleurocybella porrigens, which can be deadly if you suffer kidney disease. This is usually funnel shaped with a split so the funnel is incomplete. Rare and found mainly in Scotland.

Spore Print

Lilac. Cylindrical.

Taste / Smell

Excellent. Mushroomy.

Frequency

Fairly common.

Other Facts

The Oyster mushroom has some amazing properties one of which is that it is a carnivorous mushroom which traps and ingests nematode worms to provide it with nitrogen and other useful chemicals.
The Pleurotus family contain statins which are thought to help reduce cholesterol.
Another is the fact that they have the ability to clean up pollution by hydrocarbons like petrol and oil which is quite incredible.

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