Erysimum dubium (Hornem.) DC., Syst. Nat. 2: 504. 1821 Erysimum dubium (Hornem.) DC., Syst. Nat. 2: 504. 1821is earlier homonym of Erysimum dubium (Suter) Thell. in Verz. Tausch Säm. Früchte Zürich 1906: 11. 1906This name is not assigned to any taxon.
