 In 1959, Walter H. Snell, collaborating with Rolf Singer and Esther A. Dick, transferred the species to "Suillus".In his 1986 version of the authoritative monograph "The Agaricales in Modern Taxonomy", Singer included the species in the subsection "Latiporini" of genus "Suillus", an infrageneric grouping (below the taxonomic level of genus) characterized by a cinnamon-colored spore print without an olive tinge, and wide pores, typically greater than 1 mm when mature.Common names for the species include the American slipperycap, the American suillus, or the chicken-fat mushroom.