Epipactis fibri's name comes from beavers - Castor fiber (Linne) - particularly caring for river environment like this orchid.

E. fibri is a rare and small plant, with oval leaves shorter or equivalent than the distance between nodes.

Its numerous small flowers are slightly opened and green-yellowish.

E. fibri' s distribution is restricted to Rhone river islands downstream Lyon and it grows in very dark place.

Flowering season is particularly late an goes from July to October.