Name requested: Usnea filipendulaLichenologist 3 (1): 151. 12 (1): 102, 102, 102, 102. Lichens of North America null: 711, 712, 718, 724. Mycotaxon 104: 269, 286. 105: 384. Persoonia 9 (2): plate 28 figs G; J; K, 165, 185, 186, 188, 189, 190, 198.
Heterotypic synonym: Usnea dasypogaLichenologist 3 (1): 151. 12 (1): 102. Lichens of North America null: 718. Mycologia 4 (3): 139. 56 (4): 618.