Montagnea arenaria
- kingdom: Fungi
- phylum: Basidiomycota
- class: Agaricomycetes
- order: Agaricales
- family: Agaricaceae
- genus: Montagnea
- species: Montagnea arenaria
Osoyoos
British Columbia
Canada
Riverside
California- Denver
Colorado- White Sands
New Mexico
United States