Veronica catenata

Tracheophyta MagnoliopsidaScrophulariaceaeVeronicaVeronica catenata


This usually annual species is found in shallow water and on the muddy edges of rivers, streams, ponds and lakes, in dune-slacks, and in clay-, gravel- and chalk-pits. Although often found with V. anagallis-aquatica, its habitats are more restricted, being more frequent on the muddy edges of standing waters. Lowland.



World Distribution

Circumpolar Temperate element, with a disjunct distribution.

© P. Shannon

Broad Habitats

Light (Ellenberg): 8

Moisture (Ellenberg): 10

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 8


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.8

July Mean Temperature (Celsius): 15.6

Annual Precipitation (mm): 816

Life form information

Height (cm): 50

Perennation - primary


Perennation - secondary


Life Form - primary

Annual hydrophyte (aquatic therophyte)

Life Form - secondary

Perennial hydrophyte (perennial water plant)

Comment on Life Form

"Habitat often mud in summer, where tiny plants may possibly be annual (P & C 1994)"



Clonality - primary

Shortly creeping and rooting at nodes

Distribution information

Count of 10km squares in Great Britain: 956

Count of 10km squares in Ireland: 249

Count of 10km squares in the Channel Isles: 4

Atlas Change Index: 0.37

Weighted Changed Factor: -12

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 (228c)
Burnett J
1997.  Notes on Veronica anagallis-aquatica agg. BSBI News. 75:15-17.
Hultén E, Fries M
1986.  Atlas of north European vascular plants north of the Tropic of Cancer. 3 vols.
Meusel H, Jäger E, Rauschert S, Weinert E
1978.  Vergleichende Chorologie der zentraleuropäischen Flora. Volume 2. 2 vols.
Preston CD, Croft JM
1997.  Aquatic plants in Britain and Ireland.