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.

Atriplex longipes - Long-stalked Orache

Range & Status

Native; European Boreal-montane species; known from a few dozen coastal sites in

England and Wales and at one site in Cornwall.

Regional Distribution

Recorded at only one location in Penpoll Creek (SX15). Only four plants were seen in

1991 and two in 2004.

Habitat & Ecology

An annual species of the upper reaches of saltmarshes, in silty substrates, flooded with brackish water during highest tides. It grows along the border of a creek with other saltmarsh plants.


The colony is very small. Hybridisation with A. prostrata ( Atriplex x gustafssoniana ), could represent a threat as the hybrid has been recorded near the site, and in two other Cornish estuarine sites (West Looe River, SX25; Copperhouse Pool, SW53).


Not known.


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.