Milium effusum

Tracheophyta MagnoliopsidaPoaceaeMiliumMilium effusum

Ecology

A perennial herb of damp, deciduous woods and shaded banks, where it grows on winter-wet, calcareous to mildly acidic clay and loam soils, and also over rocks in W. Scotland. It is regarded as an indicator of ancient woodland in some parts of E. England. However, it is able to colonise open sites which are disturbed by felling or fire, and there is evidence of spread to more recent woodland in some upland areas. 0-380 m (W. of Dockray, Cumberland).

Status

Native

World Distribution

Circumpolar Boreo-temperate element, with a disjunct distribution.

Broad Habitats

Broadleaved, mixed and yew woodland

Light (Ellenberg): 4

Moisture (Ellenberg): 5

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 5

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 15.3

Annual Precipitation (mm): 928

Life form information

Height (cm): 150

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Tussock-forming graminoid, may slowly spread

Distribution information

Count of 10km squares in Great Britain: 1391

Count of 10km squares in Ireland: 91

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: 0.31

Weighted Changed Factor: -1

Weighted Change Factor Confidence (90%)

21

Distribution information

JNCC Designations

NBNSYS0000002663

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 (403a)
Comparative Plant Ecology,
Grime, J. P., Hodgson J. G., and Hunt R.
, London, (1988)

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)