Usnea arizonica
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Parmeliaceae
- genus: Usnea
- species: Usnea arizonica
Bonny Doon
California- East Haven
Connecticut
United States
Usnea arizonica Bonny Doon East Haven