Eleogiton fluitans

Tracheophyta MagnoliopsidaCyperaceaeEleogitonEleogiton fluitans


A perennial herb found mainly on peaty, acidic substrates in, or on the margins of, slow-flowing streams, ditches, pools and the sheltered shores of some larger lakes and tarns, often in seasonally flooded sites. It also occurs in muddy hollows in grasslands and heaths, and the wet floors of disused quarries, sand- and gravel-pits. 0-435 m (Llyn Gwngu, Cards., and Styhead Tarn, Cumberland).



World Distribution

Oceanic Southern-temperate element, with a disjunct distribution.

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 8

Moisture (Ellenberg): 11

Reaction (Ellenberg): 4

Nitrogen (Ellenberg): 2

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 14.2

Annual Precipitation (mm): 1259

Length: 45

Perennation - primary


Life Form - primary

Perennial hydrophyte (perennial water plant)



Clonality - primary

Irregularly fragmenting (mainly water plants)

Count of 10km squares in Great Britain: 889

Count of 10km squares in Ireland: 286

Count of 10km squares in the Channel Isles: 3

Atlas Change Index: 0.37

Weighted Changed Factor: 41

Weighted Change Factor Confidence (90%)


JNCC Designations