| Kingdom: Fungi |
| Phylum: Ascomycota |
| Subphylum: Pezizomycotina |
| Class: Sordariomycetes |
| Subclass: Sordariomycetidae |
| Order: Diaporthales |
| Family: Incertae sedis |
| Genus: Cryphonectria |
| Subject: Cryphonectria parasitica (Murrill) M.E. Barr |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Hamamelidae |
| Order: Fagales |
| Family: Fagaceae |
| Genus: Castanea |
| Subject: Castanea sativa P. Mill. |