| Name | Usnea hirta subsp. trachista (Motyka) P. Clerc |
| Authorship | (Motyka) P. Clerc |
| Rank | Subspecies |
| Placed in | Usnea hirta (Linnaeus) Weber ex F. H. Wiggers |
| GUID | urn:lsid:indexfungorum.org:names:530105 |
| Citation | 2007 Lichen Fl. Gr. Sonoran Desert Region 3: 322 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Usnea hirta subsp. trachista (Motyka) P. Clerc |
| Identification made in | [no date] (1) |
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