The lichen has a dark brown to almost black filamentous thallus, comprising individual cylindrical branches, closely attached to the rock substrate, often flattened, measuring 0.2–0.5 mm thick. It is common in windswept arctic and alpine environments, where it grows on granitic rocks and pebbles.[2]
^ abBrodo, Irwin M.; Sharnoff, Sylvia Duran; Sharnoff, Stephen (2001). Lichens of North America. Yale University Press. p. 587. ISBN978-0300082494.
^Garrido-Benavent, Isaac; Pérez-Ortega, Sergio; de los Ríos, Asunción; Mayrhofer, Helmut; Fernández-Mendoza, Fernando (2021). "Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica". Molecular Phylogenetics and Evolution. 155: 107020. doi:10.1016/j.ympev.2020.107020.
