fomitopsis betulina (piptoporus betulinus), commonly known as the birch polypore, birch bracket

autumn background bark beautiful birch bracket polypore tree bracket fungus brown closeup detail environment fomitopsis betulina forest fungi grey growing hub mushroom macro medicinal medicinal mossy mycology natural nature outdoor outdoors parasite park piptoporus betulinus plant polyporales razor strop strop romania summer tinder traditional medicine transilvania trunk white wild wildlife winter mushrooms wood