& Niskanen (2014) Phlegmacium cremeiamarescens is a species of fungus in the family Cortinariaceae.

[1] It was originally described in 2014 by the mycologists Ilkka Kytövuori, Kare Liimatainen and Tuula Niskanen who classified it as Cortinarius cremeiamarescens.

[2] The specific epithet cremeiamarescens refers to the fruitbody colour and the bitter-tasting cap cuticle.

[2] It is found in southern Europe and western North America, where it grows in coniferous forests.

[2] In 2022 the species was transferred from Cortinarius and reclassified as Phlegmacium cremeiamarescens based on genomic data.