birch polypore (Fomitopsis betulina) photo 5 months 0 birch polypore (Fomitopsis betulina) photo 5 months 0 birch polypore (Fomitopsis betulina) photo 5 months 0 birch polypore (Fomitopsis betulina) photo 5 months 0 birch polypore (Fomitopsis betulina) photo 5 months 0 Fomitopsis-betulina-identification-aid-Alaska photo 12 months 0 Fomitopsis-betulina-conk-underside-Alaska photo 12 months 0 Fomitopsis-betulina-conks-birch-snag-Alaska photo 12 months 0 Fomitopsis-betulina-on-birch-in-Anchorage-Alaska photo 12 months 0 Fomitopsis-betulinum-Piptoporus-betulinus-detection-map-2020-Alaska photo 12 months 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0 birch polypore (Fomitopsis betulina) photo about 2 years 0