This species has been recorded in Britain only in a calcareous mire at Lansdown near Bath (N. Somerset). Lowland.
C. davalliana is extinct. It was discovered before 1809, but Babington (1834) noted that it `has not been found for some years`. The site was drained and subsequently built on, and there was no trace of the plant in 1852.
European Temperate element, with a continental distribution in W. Europe.
Count of 10km squares in Great Britain: 1
Count of 10km squares in Ireland: 0
Count of 10km squares in the Channel Isles: 0
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
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
1982. Sedges of the British Isles. Botanical Society of the British Isles Handbook no. 1, edn 2.
1999. Britain's rare flowers.
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
1912. The Flora of Bristol.