Potamogeton berchtoldii

Tracheophyta MagnoliopsidaPotamogetonaceaePotamogetonPotamogeton berchtoldii

Ecology

A variable species which occurs in a wide range of still or slowly flowing waters, which may be base-rich or base-poor, oligotrophic, mesotrophic or eutrophic, and exposed or sheltered. P. berchtoldii is sometimes found in brackish sites, but is usually replaced in such habitats by P. pusillus. 0-710 m (Lochan nan Cat, Mid Perth).

Status

Native

World Distribution

Circumpolar Boreo-temperate element.

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 12

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 5

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 14.7

Annual Precipitation (mm): 1027

Length: 60

Perennation - primary

Perennial

Life Form - primary

Perennial hydrophyte (perennial water plant)

Woodiness

Herbaceous

Clonality - primary

Detaching ramets above ground (often axillary)

Count of 10km squares in Great Britain: 1461

Count of 10km squares in Ireland: 317

Count of 10km squares in the Channel Isles: 2

Atlas Change Index: 1.66

Weighted Changed Factor: 34

Weighted Change Factor Confidence (90%)

45

JNCC Designations

NBNSYS0000002140