Source-reviewed species profile
Aspen oyster Pleurotus populinus
White to pale tan fan-shaped cap, short lateral stem and white decurrent gills. This profile covers broad field features, season and habitat for learning.
Where can I find aspen oyster?
In shelves on dead or dying aspen trunks and large branches.
In Mycoverse you can select Aspen oyster and compare candidate search areas using a species-specific assessment of rainfall, estimated soil moisture, temperature, forest type, tree signals, canopy cover, terrain and season. Where source coverage is available, the assessment also uses historical species observations. Historical observations are historical data, not recent finds.
Images, text and app suggestions cannot confirm a species or food safety.
Field features
- White to pale tan fan-shaped cap, short lateral stem and white decurrent gills.
Habitat and search guidance
In shelves on dead or dying aspen trunks and large branches.
Months
March–November
Safety status
Not presented as food. Never use the app to decide whether a mushroom is safe to eat. Not presented as a food mushroom. This profile supports learning and safer boundaries; it does not approve a finding.
Sources and review status
- USDA Forest Service – Field Guide to Common Macrofungi in Eastern Forests
- USDA Forest Service – North American Fungi Protochecklist
- GBIF Backbone Taxonomy
Last reviewed: 4 October 2026.