Basionym Name:Boletus deformis Schaeff., Fung. bavar. palat. nasc. (Ratisbonae) 4: 90 (1774)
Homotypic synonyms:Fomes deformis (Schaeff.) Cooke, Grevillea 13(no. 68): 118 (1885)Polyporus deformis (Schaeff.) Fr., Hymenomyc. eur. (Upsaliae): 536 (1874)Scindalma deforme (Schaeff.) Kuntze, Revis. gen. pl. (Leipzig) 3(3): 518 (1898)