Widely Prevalent Plant Pathogen Status - This map is based on data from the Widely Prevalent Fungi Project, a collabaration between USDA APHIS PPQ and the American Phytopathological Society. See www.PrevalentFungi.org for more information.
| Kingdom: Fungi | 
| Phylum: Basidiomycota | 
| Subphylum: Hymenomycotina | 
| Class: Agaricomycetes | 
| Subclass: Agaricomycetidae | 
| Order: Polyporales | 
| Family: Meripilaceae | 
| Genus: Grifola | 
| Subject: Grifola frondosa (Dicks.) Gray | 
Other Common Names:
 sheep's head
Related Scientific Names:
                                        Polyporus frondosus  (Dicks.) P. Karst. (Synonym)