Slideshow image
Usnea strigosa (Ach.) Eaton  
Family: Parmeliaceae
Usnea strigosa image
Stephen Sharnoff  
Usnea strigosa image
Samuel Brinker  
Usnea strigosa image
Troy McMullin  
Usnea strigosa image
Stephen Sharnoff  
Usnea strigosa image
Stephen Sharnoff  
Usnea strigosa image
Stephen Sharnoff