Arrhenia gerardiana
- kingdom: Fungi
- phylum: Basidiomycota
- class: Agaricomycetes
- order: Agaricales
- family: Tricholomataceae
- genus: Arrhenia
- species: Arrhenia gerardiana
Dolbeau-Mistassini
Quebec
Canada
Mölnlycke
Västra Götaland
Sweden
Stow
Massachusetts
United States