Achillea bulgarica (Degen & Urum.) Ujhelyi in Ann. Hist.-Nat. Mus. Natl. Hung. 67: 45. 1975
Achillea bulgarica in Ann. Hist.-Nat. Mus. Natl. Hung. 67: 45. 1975
is new combination for Achillea crithmifolia var. bulgarica in Spis. Balg. Akad. Nauk. 5: 16. 1912
Achillea bulgarica in Ann. Hist.-Nat. Mus. Natl. Hung. 67: 45. 1975