| Kingdom: Fungi | 
| Phylum: Ascomycota | 
| Subphylum: Pezizomycotina | 
| Class: Dothideomycetes | 
| Subclass: Dothideomycetidae | 
| Order: Incertae sedis | 
| Family: Botryosphaeriaceae | 
| Genus: Diplodia | 
| Subject: Diplodia spp. Fr. | 
| Kingdom: Plantae | 
| Phylum: Coniferophyta | 
| Class: Pinopsida | 
| Order: Pinales | 
| Family: Pinaceae | 
| Genus: Pinus | 
| Subject: Pinus ponderosa P.& C. Lawson |