Source-reviewed species profile
Aspen trunk rot conk Phellinus tremulae
Hard hoof-shaped grey-black conk with a rusty-brown pore surface and clear growth zones. This profile covers broad field features, season and habitat for learning.
Where can I find aspen trunk rot conk?
On living aspen, often at branch scars or trunk injuries.
In Mycoverse you can select Aspen trunk rot conk 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
- Hard hoof-shaped grey-black conk with a rusty-brown pore surface and clear growth zones.
Habitat and search guidance
On living aspen, often at branch scars or trunk injuries.
Months
January–December
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.