Calonarius xanthodryophilus is a species of fungus in the family Cortinariaceae.
The species was described in 2011 by the mycologists Dimitar Bojantchev and R. Michael Davis who classified it as Cortinarius xanthodryophilus.
In 2022 the species was transferred from Cortinarius and reclassified as Calonarius xanthodryophilus based on genomic data.
The mushroom cap is wide, convex then flat or uplifted, and yellow then yellow-brown. The gills are notched, crowded, yellow then brown as the spores mature. The stalk is 5âÂÂ10 cm tall and 1.5âÂÂ3 cm wide, club-shaped, and sometimes tinted blue.
It should not be consumed due to its similarity to deadly poisonous species.
It is native to North America.