Cornish Biodiversity Network  -  Supporting Wildlife Recording

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Cornish Red Data (2009)

The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.

Juncus compressus - Round-fruited Rush

Range & Status

Native. Eurosiberian Temperate plant. The majority of British sites are inland south and east of Cumbria. There are a few sites in Scotland, Wales and Ireland.

Regional Distribution

A single remaining site in the Hayle Estuary at Copperhouse (SW53), although it may

persist in the catchment of the Fal (SW83).

Habitat & Ecology

A saltmarsh plant in Cornwall, but elsewhere it occurs in wet meadows and pastures, and brackish sites.


The proposed development of Hayle Harbour may well affect its future survival.


The site is within a SSSI.


I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.

The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.

Cornish Biodiversity Network. 2017.