Atriplex portulacoides

Tracheophyta MagnoliopsidaChenopodiaceaeAtriplexAtriplex portulacoides


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.



World Distribution

Mediterranean-Atlantic element.

© P. Shannon

Broad Habitats

Littoral sediment (includes saltmarsh and saltmarsh pools)

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

Height (cm): 80

Perennation - primary


Life Form - primary


Comment on Life Form

dwarf shrub



Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 322

Count of 10km squares in Ireland: 68

Count of 10km squares in the Channel Isles: 10

Atlas Change Index: 0.06

Weighted Changed Factor: -1

Weighted Change Factor Confidence (90%)


JNCC Designations


Atlas text references

Atlas (85b)
Akeroyd JR, Preston CD
1984.  Halimione portulacoides (L.) Aellen on coastal rocks and cliffs. Watsonia. 15:95-103.
Chapman VJ
1950.  Biological Flora of the British Isles. No. 29. Halimione portulacoides (L.) Aell. Journal of Ecology. 38:214-222.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1980)
Meusel H, Jäger E, Weinert E
1965.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.