= Bicuculla cucullaria (L.) Millsp.; Bull. West Virginia Agric. Exp. Sta. 2: 327 (1892)
= Bicuculla occidentalis Rydb.; Bull. Torrey Bot. Club 29: 160 (1902)
= Capnorchis cucullaria (L.) Planch.; Fl. Serres Jard. Eur. 8: 193 (1852 publ. 1853)
= Capnorchis occidentalis (Rydb.) House; Amer. Midl. Naturalist 8: 62 (1922)
= Corydalis bracteosa (DC.) Spreng.; Syst. Veg., ed. 16 [Sprengel] 3: 162 (1826)
= Corydalis cucullaria (L.) Pers.; Syn. Pl. [Persoon] 2: 269 (1806)
= Corydalis cucullaria (L.) Pursh; Fl. Amer. Sept. [Pursh] 2: 462 (1814)
= Cucularia bulbosa Raf.; Med. Repos. 5: 352 (1808)
= Dicentra cucullaria f. purpuritincta Eames; Rhodora 33: 169 (1931)
= Dicentra cucullaria var. occidentalis (Rydb.) M.Peck; Man. Pl. Oregon 323 (1941)
= Dicentra occidentalis (Rydb.) Fedde; Repert. Spec. Nov. Regni Veg. 10: 315 (1912)
= Diclytra bracteosa DC.; Syst. Nat. [Candolle] 2: 109 (1821)
= Diclytra canadensis Borkh.; Arch. Bot. (Leipzig) 1(2): 46 (1797)
= Diclytra cucullaria (L.) DC.; Syst. Nat. [Candolle] 2: 108 (1821)
= Diclytra cucullaria var. divaricata DC.; Syst. Nat. [Candolle] 2: 108 (1821)
= Dielytra bracteosa (DC.) G.Don; Gen. Hist. 1: 140 (1831)
= Dielytra bracteosa (DC.) Spreng.; Syst. Veg., ed. 16 [Sprengel] 3: 162 (1826)
= Dielytra cucullaria (L.) G.Don; Gen. Hist. 1: 140 (1831)
= Fumaria bicalcarata Stokes; Bot. Mat. Med. 4: 9 (1812)
= Fumaria cucullaria L.; Sp. Pl. [Linnaeus] 2: 699 (1753)
= Fumaria pallida Salisb.; Prodr. Stirp. Chap. Allerton 377 (1796) nom. illeg.