Classification
(master taxon) [(master rank)]Fungi [kingdom]
Basidiomycota [phylum]
Basidiomycotina [subphylum]
Hymenomycetes [class]
Holobasidiomycetes [subclass]
Aphyllophorales [order]
Polyporaceae [family]
Heterobasidion [genus]
Heterobasidion annosum [species]