Hapalopilus croceus is a species of polypore fungus.

It was originally described by Christian Hendrik Persoon in 1796 as Boletus croceus; Marinus Anton Donk transferred it to genus Hapalopilus in 1933 to give it the name by which it is currently known.

The species is found in Asia, Europe, Oceania, and North America, where it grows on the rotting wood of deciduous trees.

[4] It is a semicircular orange to yellow polypore mushroom which can grow up to 8 inches wide.

It rarely grows in forests across Europe and North America.