Spiny gray horsehair lichen
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Parmeliaceae
- genus: Bryoria
- species: Bryoria nadvornikiana
Sankt Georgen am Walde
Ulrichsberg
Upper Austria
Bizau
Bürserberg
Innerbraz
Schruns
Schröcken
Vorarlberg
Austria
Baie-Comeau
Quebec
Canada
Piding
Bavaria
Germany
Abborrberget
Orsa
Älvdalen
Dalarna
Älvsbyn
Norrbotten
Stockholm
Stockholm
Bergeforsen
Härnösand
Köpmanholmen
Sollefteå
Västernorrland
Sweden
Warrensburg
New York
United States