Source-reviewed species profile
Mustard-yellow polypore Phellinus gilvus
Low mustard- to rusty-brown bracket with a velvety cap and small brown pores. This profile covers broad field features, season and habitat for learning.
Where can I find mustard-yellow polypore?
On dead hardwood in warm regions and open woodland.
In Mycoverse you can select Mustard-yellow polypore 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
- Low mustard- to rusty-brown bracket with a velvety cap and small brown pores.
Habitat and search guidance
On dead hardwood in warm regions and open woodland.
Months
June–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.