Tuesday 21 May
In the News: First crane egg in the western UK in four centuries

What’s the World’s Favourite Species?
Find out here.| Kingdom | Plantae |
| Phylum | Anthophyta |
| Class | Magnoliopsida |
| Order | Ranunculales |
| Family | Ranunculaceae |
| Genus | Ranunculus (1) |
Corn buttercup produces yellow flowers with shiny petals on an erect, leafy stem (2). The leaves are split into narrow lobes (3), and the seed heads (called achenes) are extremely spiky (4), and have earned this buttercup the alternative local names of Devil's claws, Devil-on-all-sides, and hellweed (5).
This annual plant flowers from May to July (3). It is visited by small flies (2).
TopFormerly widespread, but now very scarce (4) and only seen regularly in the south of England (3). It also occurs at a few sites in Wales, south-west England and some scattered localities in the north-west of England and Scotland (2). Elsewhere it is found in central and southern Europe, North Africa and west Asia, reaching as far east as India (2).
TopThis species is a weed of cornfields (4), and seems to prefer calcareous soils (2) and clay (6). It also occasionally occurs on disturbed ground, such as on road-sides (2).
TopNo conservation designations.
TopIt is likely that agricultural intensification is responsible for the decline of this once common species (5), starting at the end of the nineteenth century when seed cleaning techniques were improved (2). Like all weeds of arable land, corn buttercup faces the more modern threats of herbicide and fertiliser use, the loss of field-margins, the use of more productive and competitive crops and alterations in the traditional style of crop rotation (5).
TopVery little direct conservation action has been targeted at this species. It may benefit from agri-environment schemes.
TopSee the Plantlife website:
http://www.plantlife.org.uk/
See the website of the Botanical Society of the British Isles at:
http://www.bsbi.org.uk
Information authenticated by Plantlife, the wild plant conservation charity:
http://www.plantlife.org.uk
More »Related species
Image credit
© Saxifraga Foundation
Saxifraga Foundation
Bredaseweg 335
5037 LC
Tilburg
The Netherlands
Tel: +31 (13) 590 0709
saxifraga@planet.nl
http://www.saxifraga.nl
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