Habitat: Temperate forests with a hardwood component.
Substrate: Hardwoods, especially oak and maple.
Spores: Early fall.
Conservation Status: Not of concern
Very similar to the classic Oyster Mushroom, but appears in late summer/early fall rather than spring and fall, and has a short-lived veil on emergence. Cap may have appressed-fibrillose scales and inrolled margin when young. Pale cap, lateral stem, gills, on dead hardwoods. Generally pale gray or grayish-tan or -white.
PNW Herbaria: Specimen records of Pleurotus dryinus in the Consortium of Pacific Northwest Herbaria database
CalPhotos: Pleurotus dryinus photos