Epilobium brunnescens (New Zealand Willowherb)


Summary Information


A creeping perennial herb of moist open areas, on gravel, gritty or stony soils, on substrates ranging from acidic to very base-rich. It grows on streamsides, ditches, tracks and paths, screes, quarries, damp stone walls and banks. It spreads by rooting at the nodes, and by seed, and is well-naturalised in many remote localities. 0-915 m (Y Garn, Caerns.) and reportedly higher in Ireland.



World Distribution

Native of New Zealand.


Photos Information


Habitats Information

Broad Habitats

Rivers and streams
Montane habitats (acid grassland and heath with montane species)
Inland rock (quarries, cliffs, screes)

Light (Ellenberg): 7 Information

Moisture (Ellenberg): 8 Information

Reaction (Ellenberg): 4 Information

Nitrogen (Ellenberg): 3 Information

Salt Tolerance (Ellenberg): 0 Information

January Mean Temperature (Celsius): 3 Information

July Mean Temperature (Celsius): 13.6 Information

Annual Precipitation (mm): 1357 Information

Life Form

Life Form Information

Height (cm): 4

Perennation - primary


Perennation - secondary

Life Form - primary


Life Form - secondary


Comment on Life Form

hemi (CTW (1962); cf. Anagallis tenella



Clonality - primary

Extensively creeping and rooting at nodes

Clonality - secondary


Distribution Information

Count of 10km squares in Great Britain: 1226

Count of 10km squares in Ireland: 423

Count of 10km squares in the Channel Isles: 2

Atlas Change Index: 1.42

Weighted Changed Factor: 41

Weighted Change Factor Confidence (90%)


Conservation Status

Conservation Status Information

Plantatt Conservation Status

Other Accounts

Other Accounts Information


References Information

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