Euro+Med: Austria, with Liechtensteinnative ‒ nativeA; France, with Channel is. and Monaconative ‒ nativeA; Germanynative ‒ nativeA; Hungarynative ‒ nativeA; PortugalnativeB; Spain, with Gibraltar and Andorranative ‒ nativeA; Switzerlandnative ‒ nativeA
Bibliography
A.Kew World Checklist of Selected Plant Families
B.Monteiro, C. & al. 2023: The Orchid flora of Portugal - Addendum N°9 - Epipactis bugacensis, a new species for Portugal. – Journal Europäischer Orchideen 55: 470-484