Barbarea intermedia

Tracheophyta MagnoliopsidaCruciferaeBarbareaBarbarea intermedia

Ecology

A biennial herb, rarely a perennial or an annual, found in a variety of waste and disturbed places, although it was formerly most frequent as an arable weed. Generally lowland, but occurring as a casual at 340 m N. of Alston (Cumberland).

Status

Neophyte

World Distribution

Native of N.W. Africa and W. Europe from Spain to Denmark; naturalised north and east of its native range.

Broad Habitats

Arable and horticultural (includes orchards, excludes domestic gardens)

Light (Ellenberg): 8

Moisture (Ellenberg): 5

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 7

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 15

Annual Precipitation (mm): 975

Height (cm): 60

Perennation - primary

Biennial, including monocarpic perennials

Life Form - primary

Hemicryptophyte

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 735

Count of 10km squares in Ireland: 207

Count of 10km squares in the Channel Isles: 7

Atlas Change Index: 1.92

Weighted Changed Factor: 7

Weighted Change Factor Confidence (90%)

39

JNCC Designations

NHMSYS0100000754

Atlas text references

Atlas (46b)
de Bolòs O, Vigo J
1990.  Flora dels Països Catalans, II. Crucíferes-Amarantàcies.
Jalas & Suominen (1994)
Rich (1987
1991)