Valeriana dioica

Tracheophyta MagnoliopsidaValerianaceaeValerianaValeriana dioica

Ecology

A perennial herb of calcareous mires, marshy grassland, water-meadows, flushes, Salix fen-carr and Alnus woods. 0-780 m (Cross Fell, Cumberland).

Status

Native

World Distribution

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

© P. Shannon

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 8

Moisture (Ellenberg): 8

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 3

0

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.2

July Mean Temperature (Celsius): 15.3

Annual Precipitation (mm): 896

Life form information

Height (cm): 35

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Far-creeping by stolons in illuminated medium

Distribution information

Count of 10km squares in Great Britain: 1171

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: -0.67

Weighted Changed Factor: -21

Weighted Change Factor Confidence (90%)

21

Distribution information

JNCC Designations

NBNSYS0000004345

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