Basionym Name:Boletus obtusus Pers., Observ. mycol. (Lipsiae) 2: 4 (1800)
Homotypic synonyms:Agaricus obtusus (Pers.) E.H.L. Krause, Basidiomycetum Rostochiensium, Suppl. 4: 142 (1932)Boletus fomentarius var. obtusus (Pers.) Pers., Syn. meth. fung. (Göttingen) 2: 538 (1801)Phellinus obtusus (Pers.) E.H.L. Krause, Mecklenburgs Basidiomyceten: 23 (1934)Polyporus obtusus (Pers.) E.H.L. Krause, Basidiomycetum Rostochiensium, Suppl. 3: 122 (1931)