agaricus campestris.field mushroom on a meadow, close up.

agaricomycetes mushroomfield microbiology environment campestris background champignon cultivated vegetarian grassland mushrooms structure toadstool agaricus mushroom commonly mycelium mycology closely america closeup healthy natural organic gilled meadow autumn common edible forest fungal fungus grassy growth health nature season eaten field north close brown fungi grass areas green macro plant white fall farm food moss soil view wild cap top