Sagina nodosa

Tracheophyta MagnoliopsidaCaryophyllaceaeSaginaSagina nodosa


S. nodosa is a plant of damp habitats, principally in mires and springs irrigated with base-rich water, but also in open, calcareous, sandy habitats, especially dunes and dune-slacks and sometimes in drier calcareous grassland. Generally lowland, but reaching 850 m on Glas Moel (Angus).



World Distribution

Eurosiberian Boreo-temperate element; also in N. America.

Broad Habitats

Light (Ellenberg): 8

Moisture (Ellenberg): 7

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 3


Salt Tolerance (Ellenberg): 1

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 14.3

Annual Precipitation (mm): 1089

Life form information

Height (cm): 15

Perennation - primary


Life Form - primary


Life Form - secondary


Comment on Life Form

perhaps genuinely intermediate; it depends on whether most stems die back



Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 1148

Count of 10km squares in Ireland: 482

Count of 10km squares in the Channel Isles: 6

Atlas Change Index: -1.14

Weighted Changed Factor: -47

Weighted Change Factor Confidence (90%)


Distribution information

JNCC Designations


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

Atlas (74b)
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Jalas & Suominen (1983)
Meusel H, Jäger E, Weinert E
1965.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.