Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Polyporales
Family: Meruliaceae
Genus: Bjerkandera
Species: B. adusta
Binomial name: Bjerkandera adusta
Bjerkandera adusta is a species of annual polypore fungi which is saprobic on the dead wood of deciduous trees causing a white rot. It is widely distributed throughout the world.
B. adusta conks are up to 4cm wide. Their upper surface is suede-like, white to cream, grey to beige with a white margin when young, this darkens to black with age. They are often fused together in tiers or in overlapping groups.
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