Usnea fragilescens
Systematics :
Kingdom: Fungi
Phylum: Ascomycota
Subphylum: Pezizomycotina
Class: Lecanoromycetes
Order: Lecanorales
Family: Parmeliaceae
Genus: Usnea
Species: Usnea fragilescens
Norwegian name: Kyststry
Norwegian Red List (2021): Vulnerable