Juncus pygmaeus

Tracheophyta MagnoliopsidaJuncaceaeJuncusJuncus pygmaeus


This diminutive, loosely tufted, spring-germinating annual occurs in seasonally wet, compacted open ground such as in gateways and on wheel tracks, less often in natural areas of erosion and in quarries, on serpentine heathland. Lowland.



World Distribution

Mediterranean-Atlantic element.

© K.J. Walker, BSBI

Broad Habitats

Boundary and linear features (eg hedges, roadsides, walls)

Light (Ellenberg): 9

Moisture (Ellenberg): 7

Reaction (Ellenberg): 4

Nitrogen (Ellenberg): 2


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 6.7

July Mean Temperature (Celsius): 15.9

Annual Precipitation (mm): 965

Life form information

Height (cm): 8

Perennation - primary


Life Form - primary

Therophyte (annual land plant)



Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 4

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Distribution information

Plantatt Conservation Status


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