Rumex obtusifolius

Tracheophyta MagnoliopsidaPolygonaceaeRumexRumex obtusifolius

Ecology

A perennial herb of field margins, hedge banks, roadsides, stream and river banks, ditches and neglected cultivated ground. Mostly lowland, up to 565 m on Dent Crag (Westmorland), but with an exceptional record at 845 m on Great Dun Fell (Westmorland).

Status

Native

World Distribution

European Temperate element; widely naturalised outside its native range.

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 5

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 9

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.6

July Mean Temperature (Celsius): 14.5

Annual Precipitation (mm): 1100

Height (cm): 100

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 2746

Count of 10km squares in Ireland: 973

Count of 10km squares in the Channel Isles: 14

Atlas Change Index: 0.66

Weighted Changed Factor: -8

Weighted Change Factor Confidence (90%)

21

JNCC Designations

NBNSYS0000003791