Basionym Name:Usnea australis Fr., Syst. orb. veg. (Lundae): 282 (1825)
Homotypic synonyms:Usnea barbata f. australis (Fr.) Vain., in Hiern, Cat. Afr. Pl. 2(2): 396 (1901)Usnea barbata var. australis (Fr.) Müll. Arg., Flora, Regensburg 70(4): 57 (1887)