A low shrub of muddy or sandy saltmarshes, commonly fringing intertidal pools and creeks, and often forming extensive stands on ungrazed saltings. In W. Britain and Ireland it also occurs locally on coastal rocks and cliffs. Lowland.
This species markedly extended its range northwards in the British Isles during the 20th century, as shown by its spread in N. Ireland (Leach, 1989) and its recent resurgence on the Isle of Man (Allen, 1984). This has been paralleled by similar changes elsewhere in N. Europe, for example, in Sweden (Blomgren, 1992).
Light (Ellenberg): 9
Moisture (Ellenberg): 8
Reaction (Ellenberg): 8
Nitrogen (Ellenberg): 6
Salt Tolerance (Ellenberg): 6
January Mean Temperature (Celsius): 4.6
July Mean Temperature (Celsius): 15.7
Annual Precipitation (mm): 869
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
1984. Halimione portulacoides (L.) Aellen on coastal rocks and cliffs. Watsonia. 15:95-103.
1950. Biological Flora of the British Isles. No. 29. Halimione portulacoides (L.) Aell. Journal of Ecology. 38:214-222.
1986. Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1980)
1965. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.