Leersia oryzoides

Tracheophyta MagnoliopsidaPoaceaeLeersiaLeersia oryzoides

Ecology

A rhizomatous perennial herb of nutrient-rich mud around the cattle-trampled margins of lakes and ponds, in ditches, on canal banks and riversides; also formerly in wet meadows. Lowland.

Status

Native

World Distribution

European Temperate element; also in C. and E. Asia and N. America.

Broad Habitats

Standing water and canals

Light (Ellenberg): 8

Moisture (Ellenberg): 9

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 7

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4.2

July Mean Temperature (Celsius): 16.5

Annual Precipitation (mm): 766

Life form information

Height (cm): 90

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Rhizome far-creeping

Count of 10km squares in Great Britain: 21

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.4

Distribution information

Plantatt Conservation Status

Endangered

JNCC Designations

NBNSYS0000002496

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 (371b)
Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols,
Hultén, E., and Fries M.
, Königstein, (1986)

Vergleichende Chorologie der zentraleuropäischen Flora. Volume 1. 2 vols,
Meusel, H., Jäger E., and Weinert E.
, Jena, (1965)

British Red Data Books. 1. Vascular plants, edn 3,
Wigginton, M. J.
, Peterborough, (1999)