Basionym:
Agaricus sordidus Schumach., Enumeratio Plantarum, in Partibus Sællandiæ Septentrionalis et Orientalis 2: 341 (1803) [MB#457358]
Obligate synonyms:
- Lepista sordida (Schumach.) Singer, Lilloa 22: 193 (1951) [MB#299524]
- Tricholoma sordidum (Schumach.) P. Kumm., Der Führer in die Pilzkunde: 134 (1871) [MB#181254]
- Rhodopaxillus sordidus (Schumach.) Maire, Ann. Mycol. 11 (4): 338 (1913) [MB#357291]
- Melanoleuca sordida (Schumach.) Murrill, Mycologia 6 (1): 3 (1914) [MB#495982]
- Lepista nuda var. sordida (Schumach.) Maire, Étud. synth. genre Tricholoma (1916) [MB#500416]
- Lepista domestica Murrill, Mycologia 7 (2): 106 (1915) [MB#495627]
- Gyrophila sordida (Schumach.) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 18 (1886) [MB#507648]
Taxonomic synonyms:
- Lepista sordida var. ianthina Bon, Doc. Mycol. 10 (37-38): 91 (1979) [MB#438602]
- Clitocybe tarda Peck, Bull. Torrey Bot. Club 24: 110 (1897) [MB#157125]
- Lepista tarda (Peck) Murrill, N. Amer. Flora 10 (2): 110 (1917) [MB#495629]
- Clitopilus tardus (Peck) Peck, Rep. (Annual) New York State Mus. Nat. Hist. 54: 167 (1902) [MB#492006]
- Lepiota tarda (Peck) Murrill, N. Amer. Flora (1917) [MB#502712]
- Agaricus nudus-praticola Alb. & Schwein. ex Sacc., Syll. Fung. 5: 139 (1887) [MB#189692]