Basionym: Agaricus squarrosus Vahl, Flora Danica 3 (9): tab. 491 (1770) [MB#241522] Obligate synonyms: - Dryophila squarrosa (Vahl) Quél., Enchiridion Fungorum in Europa media et praesertim in Gallia Vigentium: 68 (1886) [MB#455956] - Lepiota squarrosa (Vahl) Gray, A natural arrangement of British plants 1: 602 (1821) [MB#486448] - Stropharia squarrosa (Vahl) Morgan, Journal of Mycology 14 (2): 73 (1908) [MB#250263] - Fungus squarrosus (Vahl) Kuntze, Revisio generum plantarum 3 (3): 479 (1898) [MB#526473] - Pholiota squarrosa f. squarrosa (?) [MB#427888] Taxonomic synonyms: - Agaricus floccosus Schaeff., Fungorum qui in Bavaria et Palatinatu circa Ratisbonam nascuntur Icones 4: 27, t. 61 (1774) [MB#201604] - Hypodendrum floccosum (Schaeff.) Overh., North American Flora 10 (5): 280 (1932) [MB#265108] - Agaricus squarrosus Batsch, Elenchus fungorum: 85, t. 8:31 (1783) [MB#241731] - Agaricus squamosus Bull., Herbier de la France 6: t. 266 (1786) [MB#249006] - Agaricus squarrosus Bull., Herbier de la France 12: t. 535:3 (1792) [MB#241866] - Agaricus inquilinus var. squarrosulus Fr., Elenchus Fungorum 1: 39 (1828) [MB#496807] - Agaricus reflexus Pers., Synopsis methodica fungorum: 311 (1801) [MB#457043] - Gymnopus reflexus (Pers.) Gray, A natural arrangement of British plants 1: 604 (1821) [MB#486454] - Agaricus squarrosus var. reflexus (Pers.) Fr., Systema Mycologicum 1: 243 (1821) [MB#457044] - Agaricus verruculosus Lasch, Linnaea 3: 408 (1828) [MB#461743] - Pholiota squarrosa var. verruculosa (Lasch) Sacc., Sylloge Fungorum 5: 749 (1887) [MB#149334] - Agaricus squarrosus var. verruculosus (Lasch) Fr., Epicrisis Systematis Mycologici: 166 (1838) [MB#499994] - Agaricus squarrosus var. muelleri Fr., Systema Mycologicum 1: 243 (1821) [MB#375158] - Pholiota muelleri (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 32: 298 (1879) [MB#142396] - Dryophila muelleri (Fr.) Kühner & Romagn., Flore Analytique des Champignons Supérieurs: 328 (1953) [MB#297031] - Pholiota squarrosa var. muelleri (Fr.) Sacc., Sylloge Fungorum 5: 749 (1887) [MB#139271] - Pholiota squarrosa f. annulosa Wichanský (1964) [MB#350006] - Agaricus squarrosus Oeder, Fl. danic.: t. 491 (1770) [MB#490423] - Amanita filamentosa Lam., Encyclopédie Méthodique, Botanique 1-1: 112 (1783) [MB#494902] - Agaricus squarrosus var. terrestris Alb. & Schwein., Conspectus Fungorum in Lusatiae superioris: 148 (1805) [MB#498049] - Agaricus squarrosus var. truncigenus Alb. & Schwein., Conspectus Fungorum in Lusatiae superioris: 148 (1805) [MB#498050] - Agaricus squarrosus Weigel, Observationes botanicae: 40 (1772) [MB#487296]