Basionym Name:Umbilicaria erosa f. subtorrida Vain., Ark. Bot. 8(no. 4): 12 (1909)
Homotypic synonyms:Gyrophora erosa f. subtorrida (Vain.) Zahlbr., Cat. Lich. Univers. 4: 709 (1927)Umbilicaria torrefacta f. subtorrida (Vain.) Oxner, Flora Lischaĭnikiv Ukraïni (Kiev) 2(1): 385 (1968)Usnea torrefacta subsp. subtorrida (Vain.) N.S. Golubk. & Shapiro, Nov. sist. Niz. Rast. 16: 145 (1979)