Basionym:
Hydnum udum Fr., Systema Mycologicum 1: 422 (1821) [MB#169941]
Obligate synonyms:
- Mycoacia uda (Fr.) Donk, Meded. Ned. Mycol. Ver. 18-20: 151 (1931) [MB#255241]
- Odontia uda (Fr.) Bres., Atti Imp. Regia Accad. Roveretana ser. 3, 3: 97 (1897) [MB#100169]
- Sarcodontia uda (Fr.) Nikol., Flora plantarum cryptogamarum URSS. Fungi. Familia Hydnaceae 6 (2): 182 (1961) [MB#283257]
- Acia uda (Fr.) P. Karst., Meddeland. Soc. Fauna Fl. Fenn. 5: 42 (1879) [MB#100781]
- Phlebia uda (Fr.) Nakasone, Sydowia 49 (1): 72 (1997) [MB#437329]
Taxonomic synonyms:
- Hydnum sulphureum Schwein., Schriften Naturf. Ges. Leipzig 1: 104 (1822) [MB#205370]
- Odontia sulphurea (Schwein.) Rea, British Basidiomycetae: A handbook to the larger British fungi: 649 (1922) [MB#279543]
- Sistotrema griseum Pers., Mycologia Europaea 2: 198 (1825) [MB#440433]
- Odontia grisea (Pers.) Bres., Ann. Mycol. 1 (1): 85 (1903) [MB#440229]
- Acia uda var. grisea (Pers.) Bourdot & Galzin, Hyménomycètes de France: 414 (1928) [MB#255242]
- Sarcodontia uda var. grisea (Pers.) Nikol., Flora plantarum cryptogamarum URSS. Fungi. Familia Hydnaceae 6 (2): 181 (1961) [MB#353841]
- Odontia griseoolivacea Höhn., Ann. Mycol. 3 (6): 548 (1905) [MB#516920]
- Acia griseo-olivacea (Höhn.) Bourdot & Galzin (1928) [MB#252473]
- Odontia griseo-olivacea Höhn. (1905) [MB#440230]
- Acia griseoolivacea (Höhn.) Bourdot & Galzin, Hyménomycètes de France: 415 (1928) [MB#516921]