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

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.2

July Mean Temperature (Celsius): 15.3

Annual Precipitation (mm): 896

Height (cm): 35

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Far-creeping by stolons in illuminated medium

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

JNCC Designations

NBNSYS0000004345