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Veiled oyster or Oyster mushroom

How they differ, how to recognize them and which is more dangerous — a mushroom comparison

The short answer

Veiled oyster and Oyster mushroom are similar species that can be mixed up while foraging. The main visible difference: season: Veiled oyster — summer, autumn, Oyster mushroom — spring, autumn, winter. The mushrooms also differ in the following features: use, size, cap color.

Veiled oyster (Pleurotus dryinus)

Veiled oyster

Pleurotus dryinus

EdibleExpert-verified
Oyster mushrooms (Pleurotus ostreatus)

Oyster mushroom

Pleurotus ostreatus

EdibleExpert-verified

📊 Comparing characteristics

Comparison of characteristics: Veiled oyster and Oyster mushroom
Edibility class

Veiled oyster

Edible

Oyster mushroom

Edible
Season

Veiled oyster

SummerAutumn

Oyster mushroom

SpringAutumnWinter
Use

Veiled oyster

Cook fresh

Oyster mushroom

CulinaryCook freshFreezing
Size

Veiled oyster

Large (over 15 cm)

Oyster mushroom

Medium (5–15 cm)
Cap color

Veiled oyster

WhiteCreamBrown

Oyster mushroom

GreyDark greyBrown
Cap shape

Veiled oyster

Convex

Oyster mushroom

Irregular
Cap surface

Veiled oyster

Velvety

Oyster mushroom

Smooth
Taste

Veiled oyster

Mild

Oyster mushroom

Mild
Smell

Veiled oyster

Pleasant

Oyster mushroom

Pleasant, mushroomy
Flesh color change

Veiled oyster

No change

Oyster mushroom

No change
Hymenophore

Veiled oyster

Gilled

Oyster mushroom

Gilled
Stem

Veiled oyster

Lateral

Oyster mushroom

LateralEccentric
Ring (veil)

Veiled oyster

Ring present

Oyster mushroom

No ring
Volva

Veiled oyster

No volva

Oyster mushroom

No volva
Substrate

Veiled oyster

Living treeDead wood

Oyster mushroom

Dead woodOn wood
Nutrition type

Veiled oyster

Parasite

Oyster mushroom

Saprotroph
Partner trees

Veiled oyster

OakBeechHornbeam

Oyster mushroom

PoplarWillowBeechAspen

📅 Seasonality

Veiled oyster

Fruiting season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

July – November

Oyster mushroom

Fruiting season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

January, February, March, September, October, November, December

🔬 Morphology

Cap

Veiled oyster

Cap up to 20 cm across, attached by its side to the substrate, fan-shaped, convex in young ones, then flattening out. The color is pale cream to beige, sometimes with a yellowish tint. The surface of a young mushroom is velvety, with fine grayish-brown scales; with age it becomes smooth, and in old ones it may crack. Remnants of the veil sometimes remain on the edges.

Oyster mushroom

Cap 5–25 cm across, rounded or ear-shaped in young mushrooms, then fan-shaped or oyster-shaped (hence the English name oyster mushroom). Surface smooth, moist, from dark gray or gray-blue in young ones to pale gray or almost white in mature ones. Margin wavy, thin.

Hymenophore

Veiled oyster

The gills run far down the stem and sometimes join one another with wavy cross-connections in the lower part. White in color, yellowish in mature ones. The spore print is white; spores are elongated, 9–15 × 3–5 µm.

Oyster mushroom

Gills crowded, whitish or cream, running from the cap down the stem. In young mushrooms the gills are tightly packed; in old ones they spread apart. Spore print white or pale lilac.

Stem

Veiled oyster

The stem is short and lateral, from practically absent to 10 cm tall. Whitish or pale brownish in color. A distinctive feature is a membranous or flaky ring in the upper part (veil remnants); in mature ones it often falls off, leaving a band.

Oyster mushroom

Stem 1–5 cm tall (or almost absent in side-attached mushrooms), 1–2.5 cm thick, firm, off-center or lateral, white or slightly gray. No ring and no volva.

Flesh

Veiled oyster

The flesh is white, springy and fibrous in young mushrooms, tough and leathery with age. It does NOT change color when cut. It sometimes contains extra thick-walled hyphae that add to its toughness.

Oyster mushroom

Flesh white, firm in young mushrooms, more fibrous and tough in mature ones — especially in the stem. Taste mild, slightly anise-like. Soaks up flavors well during cooking.

Smell

Veiled oyster

The smell is pleasant, slightly fruity or sourish; in young ones it recalls a wildflower. The taste is mild and delicate.

Oyster mushroom

Smell pleasant, anise-mushroomy, subtle. Fresh oyster mushrooms smell soft and unobtrusive. When fried, the aroma becomes stronger and closer to the classic mushroom smell.

📍 Habitats

Veiled oyster

Deciduous forestMixed forest

Oyster mushroom

Deciduous forestMixed forest

👀 Similar mushrooms — don't mix them up!

❓ Frequently asked questions

Can Veiled oyster and Oyster mushroom be mixed up?
Yes, they look so similar that people often mix them up. The season, use, size help tell them apart.
How to tell Veiled oyster from Oyster mushroom?
The main differences: season: Veiled oyster — summer, autumn, Oyster mushroom — spring, autumn, winter; use: Veiled oyster — cook fresh, Oyster mushroom — culinary, cook fresh, freezing; size: Veiled oyster — large (over 15 cm), Oyster mushroom — medium (5–15 cm). The full table of characteristics is higher up on this page.
Is Oyster mushroom edible?
Oyster mushroom — edible.
When do Veiled oyster and Oyster mushroom grow?
Veiled oyster — July–November; Oyster mushroom — January–December.

Sources

  • [1]Вікіпедія (українська)
  • [2]Атлас грибів України, Зеров Д.К. (1979)
  • [3]MycoBank Database
  • [4]Index Fungorum
  • [5]GBIF
  • [6]iNaturalist Ukraine