Potamogeton perfoliatus

Tracheophyta MagnoliopsidaPotamogetonaceaePotamogetonPotamogeton perfoliatus


A frequent macrophyte in larger water bodies, P. perfoliatus occasionally grows in oligotrophic sites but is more often found in mesotrophic or eutrophic conditions. It is a rhizomatous perennial that grows in shallow water in sites which are not prone to occasional desiccation, but is most vigorous at depths of 1 m or more. 0-780 m (Loch an Tairbh-uisge, Mid Perth).



World Distribution

Circumpolar Boreo-temperate element, with a disjunct distribution.

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 12

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 5

Salt Tolerance (Ellenberg): 1

January Mean Temperature (Celsius): 3.5

July Mean Temperature (Celsius): 14.6

Annual Precipitation (mm): 1026

Length: 300

Perennation - primary


Life Form - primary

Perennial hydrophyte (perennial water plant)



Clonality - primary

Irregularly fragmenting (mainly water plants)

Clonality - secondary

Rhizome far-creeping

Count of 10km squares in Great Britain: 1056

Count of 10km squares in Ireland: 275

Count of 10km squares in the Channel Isles: 0

Weighted Changed Factor: -19

Weighted Change Factor Confidence (90%)


JNCC Designations