Hippuris vulgaris

Tracheophyta MagnoliopsidaHippuridaceaeHippurisHippuris vulgaris


This herbaceous perennial occurs in two growth forms. Plants with long, flaccid stems grow as submerged aquatics, and are sometimes abundant in clear calcareous water. More rigid, stiffly erect shoots grow as emergents at the edge of lakes and ponds, in swamps or in upland flushes. These may be very robust when growing on deep, eutrophic mud. 0-900 m (Moine Mhor, Easterness), but rare above 400 m.



World Distribution

Circumpolar Boreo-temperate element.

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 10

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 4

Salt Tolerance (Ellenberg): 1

January Mean Temperature (Celsius): 3.5

July Mean Temperature (Celsius): 14.7

Annual Precipitation (mm): 962

Height (cm): 30

Length: 100

Perennation - primary


Life Form - primary

Perennial hydrophyte (perennial water plant)



Clonality - primary

Rhizome far-creeping

Clonality - secondary

Extensively creeping and rooting at nodes

Count of 10km squares in Great Britain: 1142

Count of 10km squares in Ireland: 407

Count of 10km squares in the Channel Isles: 5

Atlas Change Index: -0.05

Weighted Changed Factor: -35

Weighted Change Factor Confidence (90%)


JNCC Designations


Atlas text references

Atlas (150c)
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Meusel H, Jäger E, Rauschert S, Weinert E
1978.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.
Preston CD, Croft JM
1997.  Aquatic plants in Britain and Ireland.