close up of earthballs scleroderma on the hills of santa clara county, south san francisco bay area, california

america area autumn ball bay brown california cepa citrinum clara close closeup common county danger detail earth earthball earthballs fall forest francisco fungi fungus grass green ground hills huge inedible large macro meadow mushroom mycology natural nature organic outdoors plant poison poisonous puffball round san santa scleroderma season seasonal south spring states toadstool toxic two uncultivated united usa wild woodland yellow