Two varieties have been described. "Chalciporus piperatus" var. "hypochryseus" was originally described as "Boletus hypochryseus" by Czech mycologist Josef Šutara in 1993, and was moved to "Chalciporus" a year later by Regis Courtecuisse. Wolfgang Klofac and Irmgard Krisai-Greilhuber reclassified it as a variety of "C. piperatus" in 2006, although some sources continue to regard it as a distinct species. Variety "amarellus", first published by Quélet as "Boletus amarellus" in 1883 and later transferred to "Chalciporus" by Bataille in 1908, was described as a variety of "C. piperatus" in 1974 by Albert Pilát and Aurel Dermek. Authorities disagree as to whether or not it has independent taxonomic significance.