bracket fungi or polypore fungus on an old fallen tree trunk on ground

autumn background bark biology botany bracket brown closeup concept disease ecology ecosystem environment europe flora foment forest fungal fungi garden green growth hoof fungus iceman mushroom mycology nature edible parasite park pattern plant polyporaceae polypore season shelf tinder conk tinderbracket tinderconk tinderfungus tinderpolypore toxic tree trunk winter woodland woods yellow old fallen ground color combination early spring dutch strijthagerbeekdal reserve landgraaf south limburg netherlands