clump of sheathed woodtuft mushroom growth, german fall season nature

autumn autumnal closeup clump cluster clustered clustering color colour community details distribution ecosystem environment european fall flora forest fruiting fungi fungus ground growing grown growth kuehneromyces moist mushroom mutabilis mycology natural nature orangebrown organism pholiota plant season seasonal sheated sheathed stump symbiosis symbiotic topview tree vegetation wood woodtuft woods brown stew twotoned conglomerate covered moss real