Pictorial guide to the flora of the British Isles

Home ⟩ Pictorial Guide ⟩ Cyperaceae ⟩ Cladium mariscus / great fen-sedge

Cladium mariscus (L.) Pohl

great fen-sedge (Cyperaceae)

 SpreadBias within British IslesDirection of bias
WidespreadModerate tendencyW
Plant Atlas 2020
BSBI Distribution Map

Cladium mariscus grows in base-rich wetlands, mostly in western Ireland, north-western Scotland and East Anglia; its leaves are greyish and finely but sharply serrate.

Oxford (VC23: Oxfordshire); 2015-06-26

 great fen-sedge / Cladium mariscus: _Cladium mariscus_ grows in base-rich wetlands, mostly in western Ireland, north-western Scotland and East Anglia; its leaves are greyish and finely but sharply serrate.

The numerous inflorescences of Cladium mariscus are rounded heads of short spikelets.

Oxford (VC23: Oxfordshire); 2015-06-26

 great fen-sedge / Cladium mariscus: The numerous inflorescences of _Cladium mariscus_ are rounded heads of short spikelets.

All images copyright © Christopher J. Dixon unless otherwise indicated.

L-R: Bidens tripartita, Melilotus officinalis, Mimulus guttatus, Thalictrum flavum, Ranunculus peltatus, Anchusa arvensis, Malva alcea, Lolium perenne