Hebeloma arenosum is a species of mushroom in the family Hymenogastraceae.
Described as new to science in 1986, it was first recorded in Wisconsin, where it was growing on sandy soil in a nursery bed containing Pinus resinosa (Norway pine).
It is found all over the Great Lakes region of the United States, where it is an ectomycorrhizal associate with spruce and pine grown in nursery beds.