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

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)

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%)


JNCC Designations


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.