hoof fungus or tinder fungus (fomes fomentarius), close up on tree trunk.

soil nature leaf wildlife wood fungus mushroom trunk autumn plant green produce background bark beautiful beauty biology bracket brown closeup color colorful detail fall forest fungal fungi growth hoof inedible macro medicine moss mushrooms mycology natural old organic outdoor outdoors parasite polypod polypore pores snow stem summer texture tinder white wild winner fomes fomentarius close tree