Previously known as Scirpus fluitans, this plant is found both floating on ponds and lakes as well as lurking on the mud at the edges. Without flowers it can look like lush green grass but here the flowering spikes can clearly be seen.

It is foundmore in the west than the east with Wales, Cornwall and the north west of Scotland being favourite haunts. It is not common in central and southern England but is found frequently in the west of Ireland.

Corsydd Llyn, Lleyn Peninsula, Wales 4th August 2008

Added on 26th September 2006, updated 25th December 2008, updated 29th March 2010