Classification
(master taxon) [(master rank)]Fungi [kingdom]
Basidiomycota [phylum]
Basidiomycotina [subphylum]
Hymenomycetes [class]
Holobasidiomycetes [subclass]
Agaricales [order]
Agaricaceae [family]
Agaricus [genus]
Agaricus campester [species]