Koeleria vallesiana

Tracheophyta MagnoliopsidaPoaceaeKoeleriaKoeleria vallesiana

Ecology

A tufted perennial grass of open, sheep-grazed turf around rock outcrops on S.-facing Carboniferous limestone slopes. Its sites are characterised by high levels of insolation and summer drought. Lowland.

Status

Native

World Distribution

Suboceanic Southern-temperate element.

Broad Habitats

Calcareous grassland (includes lowland and montane types)

Light (Ellenberg): 8

Moisture (Ellenberg): 1

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 1

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4.5

July Mean Temperature (Celsius): 16.4

Annual Precipitation (mm): 868

Height (cm): 40

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Tussock-forming graminoid, may slowly 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

JNCC Designations

NBNSYS0000002609

Atlas text references

Atlas (392b)
Green PR, Green IP, Crouch GA
1997.  The Atlas Flora of Somerset.
Sell & Murrell (1997)
Wigginton MJ
1999.  British Red Data Books. 1. Vascular plants, edn 3.