Euphrasia officinalis subsp. rostkoviana (Hayne) F. Towns. in J. Bot. (Schrader) 22: 165. 1884
Euphrasia officinalis subsp. rostkoviana in J. Bot. (Schrader) 22: 165. 1884
is new combination for Euphrasia rostkoviana, Getreue Darstell. Gew. 9: t. 7. 1825
Euphrasia officinalis subsp. rostkoviana in J. Bot. (Schrader) 22: 165. 1884