Blysmus compressus

Tracheophyta MagnoliopsidaCyperaceaeBlysmusBlysmus compressus


A rhizomatous perennial of open areas in marshes and fens, and in short, sedge-rich, damp grassland, calcareous flushes and stream borders which are subject to flooding. 0-490 m (Co. Durham).



World Distribution

European Temperate element, with a continental distribution in W. Europe; also in C. Asia.

© K.J. Walker, BSBI

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 8

Moisture (Ellenberg): 8

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 3


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.2

July Mean Temperature (Celsius): 15.2

Annual Precipitation (mm): 840

Life form information

Height (cm): 37

Perennation - primary


Life Form - primary




Clonality - primary

Rhizome far-creeping

Count of 10km squares in Great Britain: 384

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -1.28

Distribution information

JNCC Designations


External Species Accounts

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