Origin: North America

First finding in Slovenia: not yet found in Slovenia

Pathways: transported with infected wood, secundary spreadying also with wind and insects

Possible to identify: year-round

Habitat: Affects all coniferous trees. Fruiting bodies mainly on dead trees, including cut wood, more rarely also on living ones. 

Status in Slovenia: Occurs about 100 k from Slovenia at the Tyrrhenian coast of Italy.   

Similar species: He­te­ro­basidion annosum, H. par­viporum, H. abietis. 

Source:  Terenski priročnik za prepoznavanje tujerodnih vrst v gozdovih (Fieldguide for the identification of alien species in forests)