Lepidium draba (Hoary Cress)

Ecology

A perennial rhizomatous herb of roadsides, and on dry limestone or clinker ballast of railways. It also grows on waste ground, in arable fields on light soils, on sand dunes and other sandy ground, particularly near the sea, and in the uppermost zone of saltmarshes. Lowland.

Status

Neophyte

World Distribution

Native of S. Europe and S.W. Asia; naturalised throughout temperate W. Europe, N. America and the S. hemisphere.

© M. Cotterill, IWNHAS

Broad Habitats

Light (Ellenberg): 8

Moisture (Ellenberg): 4

Reaction (Ellenberg): 8

Nitrogen (Ellenberg): 6

1

Salt Tolerance (Ellenberg): 1

January Mean Temperature (Celsius): 3.8

July Mean Temperature (Celsius): 15.7

Annual Precipitation (mm): 786

Life form information

Height (cm): 60

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Comment on Life Form

treat as a hemicryptophyte with spreading rhizome

Woodiness

Herbaceous

Clonality - primary

Rhizome far-creeping

Distribution information

Count of 10km squares in Great Britain: 1158

Count of 10km squares in Ireland: 39

Count of 10km squares in the Channel Isles: 9

Atlas Change Index: 0.06

Weighted Changed Factor: 19

Weighted Change Factor Confidence (90%)

24

Distribution information

JNCC Designations

NBNSYS0000002837

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.