Letharia columbiana (Nutt.) J.W. Thomson  
Family: Parmeliaceae
[Letharia californica (Lev.) Hue]
Letharia columbiana image
Stephen Sharnoff  
Letharia columbiana image
Jason Hollinger  
Letharia columbiana image
Stephen Sharnoff  
Letharia columbiana image
Stephen Sharnoff  
Letharia columbiana image
Stephen Sharnoff