Ranunculus fluitans

Tracheophyta MagnoliopsidaRanunculaceaeRanunculusRanunculus fluitans

Ecology

This is a perennial species which grows in large, rapidly flowing rivers with a stable substrate. It is usually found in base-rich and meso-eutrophic water. In Ireland, it is confined to a single, now locally highly polluted, river. Lowland.

Status

Native

World Distribution

European Temperate element.

Broad Habitats

Rivers and streams

Light (Ellenberg): 7

Moisture (Ellenberg): 12

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 6

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.3

July Mean Temperature (Celsius): 15.4

Annual Precipitation (mm): 798

Length: 300

Perennation - primary

Perennial

Life Form - primary

Perennial hydrophyte (perennial water plant)

Woodiness

Herbaceous

Clonality - primary

Irregularly fragmenting (mainly water plants)

Clonality - secondary

Extensively creeping and rooting at nodes

Count of 10km squares in Great Britain: 373

Count of 10km squares in Ireland: 3

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: 1.96

Distribution information

JNCC Designations

NBNSYS0000002725

PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections. A hardcopy can be purchased from the Centre for Ecology and Hydrology.

Atlas text references

Atlas (23c)
Curtis TGF, McGough HN
1988.  The Irish Red Data Book. 1. Vascular Plants.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1989)
Preston CD, Croft JM
1997.  Aquatic plants in Britain and Ireland.