H. abietinum H. amyloideum H. annosum H. araucariae H. arbitrarium H. australe H. ecrustosum H. insulare sensu typi H. irregulare H. linzhiense H. occidentale H. orientale H. pahangense H. parviporum H. rutilantiforme H. tibeticum Heterobasidion is a genus of basidiomycetes in the family of Bondarzewiaceae.

Heterobasidion root disease and butt rot are a serious issues to forest health due to tree mortality, decreased lumber volume and quality, and lessened carbon sequestration.

[5] Heterobasidion annosum sensu lato includes five species, which differ in host preference, genetics, morphology, and geographic range.

Some species of this fungal complex can be easily differentiated from H. annosum sensu lato due to the red coloration on the top surface of the fruiting body.

[3][7] The seven species are H. orientale (N-type), H. ecrustosum (T-type), H. insulare sensu typi, H. linzhiense, H. australe, H. amyloideum, H. tibeticum (Z-type).