MYC / 0001 · Species record
Oyster Mushroom
Pleurotus ostreatus
Morphology, family and ecology notes below are linked to a regional field guide. Other catalog fields remain unreviewed; this is not a complete identification key.
01 / Overview
Meet the organism.
A shelf-forming mushroom known for vigorous growth on hardwood and agricultural byproducts.
02 / Classification
Its place in the collection.
- Kingdom
- Fungi
- Phylum
- Not reviewed
- Order
- Not reviewed
- Family
- Pleurotaceae
- Genus · recorded
- Pleurotus
- Species · recorded
- Pleurotus ostreatus
03 / Morphology
Read the form.
Overlapping, shell-shaped caps with pale gills running down a short, off-center stalk. Color varies from pale to gray or tan.
04 / Habitat & ecology
Within a living system.
Recorded habitat · unreviewed
Hardwood logs, fallen limbs, and straw-based cultivation blocks
Ecological role
A wood-decaying fungus found on deciduous trunks, stumps and logs. Decomposition returns nutrients from wood to the surrounding ecosystem; it does not establish a measured pasture benefit.
Ecological descriptions do not measure soil condition or establish effects on livestock performance.
05 / Distinguishing features
Similar species.
Pleurotus pulmonarius is also called oyster mushroom. The linked regional guide discusses both; these notes are not a complete identification key.
Edibility & toxicity
Edible · Recorded catalog status, not an assessment of a specimen.
Never use this catalog, its photographs, or demonstration models to decide whether a fungus is safe to consume.
Evidence trail
Missouri Department of Conservation · Oyster Mushroom (regional guide) ↗Notes checked against this source: 2026-09-10. Regional scope and identification limitations apply.
Keep exploring / Academy
From observation to understanding.
Build the concepts behind what you see.