I report the discovery of Euphrasia corcontica (Orobanchaceae) — a plant endemic to Karkonosze — in the Karkonosze National Park (Polish part of the Sudetes). It was first described as a product of Pleistocene hybridization between E. minima and E. micrantha, reported to occur only in the Czech Republic and believed to have gone extinct. Based on the examination of the holotype, differences between E. corcontica and two other high-mountain taxa, E minima and E. micrantha, are elaborated. The new locality for E. corcontica is in ruins of the Prince Henry Shelter, which burned down in 1945, on the main tourist route in the Karkonosze Mts.