Potamogeton perfoliatus
Tracheophyta
›Magnoliopsida›Potamogetonaceae›Potamogeton›Potamogeton perfoliatus
Ecology
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).
Status
Native
Trends
There is evidence for a decline of P. perfoliatus in some areas, such as Surrey and Cheshire. However it remains frequent in many regions, including some where more exacting Potamogeton species have declined.
World Distribution
Circumpolar Boreo-temperate element, with a disjunct distribution.
There are no images in this gallery.
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
Perennial
Life Form - primary
Perennial hydrophyte (perennial water plant)
Woodiness
Herbaceous
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%)
38
JNCC Designations
NBNSYS0000002134