Ranunculus circinatus

Tracheophyta MagnoliopsidaRanunculaceaeRanunculusRanunculus circinatus

Ecology

A perennial herb of clear, base-rich, standing or very slowly flowing water, most frequently in lakes, flooded gravel-pits, sluggish streams and rivers, canals and ditches. It usually grows at depths of 1-3 m in meso-eutrophic or eutrophic water; only growing in shallower water if it does not dry up in summer. 0-310 m (Akermoor Loch, Selkirks.).

Status

Native

World Distribution

Eurasian Temperate element.

© P. Shannon

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 12

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 7

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 15.8

Annual Precipitation (mm): 753

Length: 75

Perennation - primary

Perennial

Life Form - primary

Perennial hydrophyte (perennial water plant)

Woodiness

Herbaceous

Clonality - primary

Irregularly fragmenting (mainly water plants)

Count of 10km squares in Great Britain: 575

Count of 10km squares in Ireland: 76

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.34

Distribution information

JNCC Designations

NBNSYS0000002726

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 (23d)
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.