Ranunculus hederaceus

Tracheophyta MagnoliopsidaRanunculaceaeRanunculusRanunculus hederaceus

Ecology

A small annual or short-lived perennial, found at the edge of small water bodies and by the sheltered backwaters of rivers. It often grows on the cattle-poached edges of ponds, ditches and streams, in wet gateways and on paths and tracks. It tolerates a broad range of pH and nutrient levels, including nitrophilous conditions. 0-770 m (Little Dun Fell, Westmorland).

Status

Native

World Distribution

Suboceanic Southern-temperate element.

© P. Shannon

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 10

Reaction (Ellenberg): 5

Nitrogen (Ellenberg): 5

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 14.5

Annual Precipitation (mm): 1093

Life form information

Height (cm): 9

Length: 23

Perennation - primary

Annual

Perennation - secondary

Perennial

Life Form - primary

Annual hydrophyte (aquatic therophyte)

Life Form - secondary

Perennial hydrophyte (perennial water plant)

Comment on Life Form

Normally annual but occasionally perennates (P & C 1994)

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Clonality - secondary

Extensively creeping and rooting at nodes

Distribution information

Count of 10km squares in Great Britain: 1703

Count of 10km squares in Ireland: 551

Count of 10km squares in the Channel Isles: 8

Atlas Change Index: 0.1

Weighted Changed Factor: -17

Weighted Change Factor Confidence (90%)

24

Distribution information

JNCC Designations

NBNSYS0000002722

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 (22d)
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1989)
Meusel H, Jäger E, Weinert E
1965.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
Preston CD, Croft JM
1997.  Aquatic plants in Britain and Ireland.