Epilobium parviflorum

Tracheophyta MagnoliopsidaOnagraceaeEpilobiumEpilobium parviflorum


A perennial herb, most frequent in marshes, fens, streamsides and other disturbed wet places, spreading by air-borne seed. However, the species will also grow in dry habitats, including quarries, banks and waste ground and as a street weed. Generally lowland, reaching 365 m in Derbyshire.



World Distribution

European Temperate element.

© P. Shannon

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 7

Moisture (Ellenberg): 9

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 5


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.8

July Mean Temperature (Celsius): 14.9

Annual Precipitation (mm): 996

Life form information

Height (cm): 75

Perennation - primary


Life Form - primary




Clonality - primary

Little or no vegetative spread

Comment on Clonality

Short overwintering stolons produce new shoots close to base of stem (CPE)

Distribution information

Count of 10km squares in Great Britain: 2070

Count of 10km squares in Ireland: 824

Count of 10km squares in the Channel Isles: 11

Atlas Change Index: -0.41

Weighted Changed Factor: 59

Weighted Change Factor Confidence (90%)


Distribution information

JNCC Designations


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

Atlas (144d)
Grime JP, Hodgson JG, Hunt R
1988.  Comparative Plant Ecology.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.