Euphrasia officinalis Linnaeus, Species Plantarum 2: 604. 1753.

"Habitat in Europae pascuis aridis." RCN: 4380.

Lectotype (Yeo in Bot. J. Linn. Soc. 77: 237. 1978): Herb. Linn. No. 759.2, excl. middle specimen (LINN) .

Generitype of Euphrasia Linnaeus (vide Green, Prop. Brit. Bot.: 167. 1929).

Current name: Euphrasia officinalis L. subsp. officinalis ( Scrophulariaceae).

Note: Some authors (e.g. Pugsley in Bot. J. Linn. Soc. 48: 522. 1930; Smejkal in Biol. Práce 9(9): 6. 1963; Sell & Yeo in Bot. J. Linn. Soc. 63: 201. 1970) have rejected this as a nomen ambiguum, as did Yeo (in Bot. J. Linn. Soc. 77: 237. 1979), despite designating a lectotype. Silverside (in Watsonia 18: 343-346. 1991) accepted Yeo’s typification but argued that there are no grounds for rejecting the name, and applied it in the sense of E. rostkoviana Hayne var. fennica (Kihlman) Jalas.