Sterile Conk Trunk Rot of Birch
Inonotus obliquus
Safety assessment
Inedible
Based on reviewed safety sources.
A black, cracked conk on birch. Not a culinary mushroom, but brewed as a tea rather than eaten.
Identification
- Surface black and deeply cracked, like a piece of charcoal.
- Grows only on birch, often as knobbly growths along the trunk.
Baltic distribution
- Latvia
- 46
- Lithuania
- 174
- Estonia
- 545
- Global
- 27117
Occurrence records in GBIF — not a claim that the species is absent elsewhere.
Safety first. This information is an educational reference, not a confirmation of an edible mushroom. Identifying fungi is difficult and mistakes can be dangerous. Never eat a mushroom unless you are completely certain of its identity, and consult a certified mycologist.
