Letharia
| Letharia | |
|---|---|
| Letharia vulpina in the San Gabriel Mountains, Los Angeles USA. | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Fungi | 
| Division: | Ascomycota | 
| Class: | Lecanoromycetes | 
| Order: | Lecanorales | 
| Family: | Parmeliaceae | 
| Genus: | Letharia (Th.Fr.) Zahlbr. (1892) | 
| Type species | |
| Letharia vulpina | |
| Synonyms | |
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Letharia is a genus of fruticose lichens belonging to the family Parmeliaceae.
There were historically two species of Letharia: L. vulpina and L. columbiana. Recent molecular sequence studies published in 2016 confirm at least 6 species in Western North America alone, with more expected to be confirmed using similar methods in other parts of the world.
The typical photobiont is a green alga of genus Trebouxia.