A perennial herb typically forming dense colonies on moist saline soils. Habitats include saltmarshes, strandlines, damp shingle, wet sand, brackish dune-slacks, aerobic mud and spray-drenched rock crevices. It is a poor competitor which often forms pure stands, but also grows in open communities with other halophytes. Lowland, but persisting as an introduction at 570 m (Hartside, Cumberland).
There has been no change in the overall distribution of this species since the 1962 Atlas.
Circumpolar Boreo-temperate element.
Light (Ellenberg): 8
Moisture (Ellenberg): 7
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 5
Salt Tolerance (Ellenberg): 4
January Mean Temperature (Celsius): 4.2
July Mean Temperature (Celsius): 14.3
Annual Precipitation (mm): 1177
Height (cm): 30
Perennation - primary
Life Form - primary
Life Form - secondary
Comment on Life Form
Clonality - primary
Comment on Clonality
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.
1988. Population dynamics of Glaux maritima (L.) along a distributional cline. Vegetatio. 74:161-170.
1996. Phenotypic variation in clonal growth of Glaux maritima along an environmental cline. Acta Botanica Neerlandica. 45:367-380.
1978. Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.