Click on images to enlarge
large infestation (Photo: Trevor James)
habit (Photo: Sheldon Navie)
habit in flower (Photo: Trevor James)
creeping hairy stems that root at their joints (Photo: Sheldon Navie)
leaves with three toothed or lobed leaflets (Photo: Sheldon Navie)
leaves may sometimes have deeply-divided leaflets (Photo: Trevor James)
close-up of leaf showing three toothed leaflets (Photo: Greg Jordan)
flowers (Photo: Trevor James)
close-up of flower (Photo: Greg Jordan)
immature fruit (Photo: Sheldon Navie)
close-up of immature fruit (Photo: Greg Jordan)
close-up of seeds (Photo: Steve Hurst at USDA PLANTS Database)
Ranunculus repens L.
butter daisy, buttercup, creeping buttercup, creeping crowfoot
Native to Europe, the Azores, the Madeira Islands, north-western Africa (i.e. northern Algeria and Morocco), western Asia (i.e. northern Iraq, Iran, Turkey, Armenia, Azerbaijan and Georgia) and northern Asia (i.e. Russia, Mongolia, northern China and Japan).
Widely naturalised in south-eastern Australia (i.e. in the coastal and sub-coastal districts of eastern New South Wales, in the ACT, in many parts of Victoria, in Tasmania and in south-eastern South Australia). It is also occasionally naturalised in south-eastern Queensland and on Norfolk Island.
Also widely naturalised in other parts of the world (i.e. in southern Africa, New Zealand, Hawaii, the USA, Canada, Central America and South America).
Creeping buttercup (Ranunculus repens) is regarded as a significant environmental weed in Victoria and as an environmental weed in New South Wales and the ACT. In a recent survey, it was also listed as a priority environmental weed in at least one Natural Resource Management region.
As well as being a weed of gardens, lawns, roadsides, waste areas and pastures, this species commonly grows in wetter habitats (i.e. in marshes, swamps and wetlands). It prefers moist, marshy soils, and tends to infest creek banks and swampy areas. Creeping buttercup (Ranunculus repens) spreads rapidly and quickly displaces native plants in such environments, particularly in areas which are disturbed or nutrient-enriched.
In Victoria, creeping buttercup (Ranunculus repens) is regarded as a serious threat to one or more vegetation formations. It is listed as a high impact weed species in floodplain riparian woodlands and estuarine wetlands in some parts of the state. It also appears on numerous local and regional environmental weed lists (e.g. in Monash City, Banyule City, Knox City, Manningham City, the Shire of Yarra Ranges, Colac-Otway Shire and the Goulburn Broken Catchment).
Creeping buttercup (Ranunculus repens) is listed as one of the alien naturalised plants present in the Yellingbo Nature Conservation Reserve that has the potential to seriously degrade or even eliminate the indigenous vegetation in the reserve. It is also listed as one of the main weed species of concern to endangered sedge-rich Eucalyptus camphora swamp vegetation in Victoria.
Fact sheets are available from Department of Employment, Economic Development and Innovation (DEEDI) service centres and our Customer Service Centre (telephone 13 25 23). Check our website at www.biosecurity.qld.gov.au to ensure you have the latest version of this fact sheet. The control methods referred to in this fact sheet should be used in accordance with the restrictions (federal and state legislation, and local government laws) directly or indirectly related to each control method. These restrictions may prevent the use of one or more of the methods referred to, depending on individual circumstances. While every care is taken to ensure the accuracy of this information, DEEDI does not invite reliance upon it, nor accept responsibility for any loss or damage caused by actions based on it.
Copyright © 2016. All rights reserved. Identic Pty Ltd. Special edition of Environmental Weeds of Australia for Biosecurity Queensland.
The mobile application of Environmental Weeds of Australia is available from the Google Play Store and Apple iTunes.