Iris foetidissima

Tracheophyta MagnoliopsidaIridaceaeIrisIris foetidissima

Ecology

A perennial herb, highly tolerant of drought and shade, found in hedge banks and woods, and on sheltered scrubby sea-cliffs, mostly on calcareous substrates. Reproduction is by seed and by rhizomatous extension. Lowland.

Status

Native

World Distribution

Suboceanic Southern-temperate element.

© M. Cotterill, IWNHAS

Broad Habitats

Broadleaved, mixed and yew woodland

Light (Ellenberg): 5

Moisture (Ellenberg): 4

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 5

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 4.2

July Mean Temperature (Celsius): 16.1

Annual Precipitation (mm): 821

Height (cm): 80

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Comment on Life Form

The fact that it is wintergreen does not make it a chamaephyte any more than Lolium perenne

Woodiness

Herbaceous

Clonality - primary

Rhizome shortly creeping

Count of 10km squares in Great Britain: 728

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 14

Atlas Change Index: 1.47

Weighted Changed Factor: 54

Weighted Change Factor Confidence (90%)

17

JNCC Designations

NBNSYS0000002268

Atlas text references

Atlas (329b)
Mabey R
1996.  Flora Britannica.
Mathew B
1981.  The Iris.