Juncus subnodulosus

Tracheophyta MagnoliopsidaJuncaceaeJuncusJuncus subnodulosus

Ecology

A strong, rhizomatous perennial herb growing in dense stands in fens, marshes, wet meadows, ditches and by water, usually in more base-rich conditions than any of the other jointed-rushes (sect. Septati); it also sometimes occurs in brackish water. Lowland.

Status

Native

World Distribution

European Southern-temperate element.

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 8

Moisture (Ellenberg): 9

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 4

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.9

July Mean Temperature (Celsius): 15.5

Annual Precipitation (mm): 838

Height (cm): 120

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Rhizome shortly creeping

Count of 10km squares in Great Britain: 680

Count of 10km squares in Ireland: 224

Count of 10km squares in the Channel Isles: 2

Atlas Change Index: 0.15

Weighted Changed Factor: 0

Weighted Change Factor Confidence (90%)

50

JNCC Designations

NBNSYS0000002229

Atlas text references

Atlas (321a)
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Meusel H, Jäger E, Weinert E
1965.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols.
Richards & Clapham (1941e)