Epipactis palustris. Marsh helleborine.

Life-form & Growth Form:  

Non-bulbous geophyte. Herbaceous perennial. Rhizome far-creeping. 

Flowering period: 

June and July.


Neutral and calcareous fens, marshes, wet meadows and dune-slacks. Slumped terraces of wet, calcareous sea cliffs and gravel-pits. Lowland. 


Drainage and ploughing of wet grassland as part of agricultural improvement. Overgrazing of wet grassland resulting in inability to flower and set seed. Undergrazing of wet grassland resulting in encroachment of tall herb and scrub communities e.g. in dune slacks. Replacement of coastal dune systems with golf courses, private housing and public amenity areas. Eutrophication of wetland habitat resulting in dominance of rank vegetation. Trampling and erosion caused by walkers.  

Static distribution map:
Epipactis palustris 10 km atlas 1000
Epipactis palustris
For an interactive map follow this link to the BSBI webpage