| Kingdom: Fungi | 
| Phylum: Basidiomycota | 
| Subphylum: Hymenomycotina | 
| Class: Agaricomycetes | 
| Subclass: Agaricomycetidae | 
| Order: Russulales | 
| Family: Stereaceae | 
| Genus: Stereum | 
| Subject: Stereum spp. Pers. | 
| Kingdom: Plantae | 
| Phylum: Magnoliophyta | 
| Class: Magnoliopsida | 
| Subclass: Hamamelidae | 
| Order: Fagales | 
| Family: Fagaceae | 
| Genus: Quercus | 
| Subject: Quercus spp. L. |