Living Beings
    Source-identified Pleurotus ostreatus; Documentary organism photograph; source identification retained. Framed for display
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    Gewone oesterzwam (Pleurotus ostreatus) 25-12-2020 (d.j.b.) 01.jpg · Resized and converted to WebP for display. Documentary organism photograph; source identification retained. Dominicus Johannes Bergsma · CC BY-SA 4.0

    Field guide · species

    Oyster Mushroom

    Pleurotus ostreatus (Jacq.) P. Kumm., 1871

    What does the authority mean?

    The authority credits the formal scientific description of the name. A year records publication of that description.

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    FungiAgaricomycetesAgaricalesPleurotaceae

    The oyster mushroom forms overlapping shelves on wood. It is both a wild decomposer and an extensively cultivated fungus, with fruiting-body development closely tied to environmental conditions.

    Public research profile · final editorial review pending.

    Compare species
    Tree of lifeScientific lineage
    1. LifeLife
    2. DomainEukaryota
    3. KingdomFungi
    4. PhylumBasidiomycota
    5. ClassAgaricomycetes
    6. OrderAgaricales
    7. FamilyPleurotaceae
    8. GenusPleurotus
    9. SpeciesPleurotus ostreatus
    Advanced classification

    Complete source lineage, including intermediate ranks. The standard view uses Life and the eight principal ranks.

    1. cellular organisms cellular root
    2. Eukaryota domain
    3. Opisthokonta clade
    4. Fungi kingdom
    5. Dikarya subkingdom
    6. Basidiomycota phylum
    7. Agaricomycotina subphylum
    8. Agaricomycetes class
    9. Agaricomycetidae subclass
    10. Agaricales order
    11. Pleurotineae suborder
    12. Pleurotaceae family
    13. Pleurotus genus
    14. Pleurotus ostreatus species
    Open in taxonomy explorer ↗

    Structure and identification

    A broad cap carries pale gills that run down a short or nearly absent stem. Caps can overlap in shelf-like groups; coloration alone does not reliably separate every oyster-mushroom species.

    Scientific source 1 ↗ · Scientific source 2 ↗

    Habitat and range

    Dead or declining hardwood provides a substrate for the feeding mycelium. The mushroom emerges from this colonized wood.

    Scientific source 1 ↗ · Scientific source 2 ↗

    Nutrition and metabolism

    Extracellular enzymes break down components of wood so that the fungus can absorb released nutrients.

    Scientific source 1 ↗ · Scientific source 2 ↗

    Reproduction and life cycle

    Vegetative hyphae grow through their substrate before reproductive fruiting bodies form. Spores released from the gills can disperse to new suitable material.

    Scientific source 1 ↗ · Scientific source 2 ↗

    Geographic distribution

    Widely documented and cultivated. Regional records should be checked against closely related Pleurotus species rather than assigning every oyster-shaped mushroom to P. ostreatus.

    Scientific source 1 ↗ · Scientific source 2 ↗

    Ecological role

    Wood decomposition returns material to nutrient cycles. Cultivation research also investigates how heat stress alters growth and fruiting.

    Scientific source 1 ↗ · Scientific source 2 ↗

    Distinctive adaptations

    A lateral attachment and descending gills suit a fruiting body projecting from the side of a woody substrate.

    Scientific source 1 ↗ · Scientific source 2 ↗

    Evidence

    Sources

    Connected life

    No reviewed ecological connections in the collection yet.

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