Myosotis laxa

Tracheophyta MagnoliopsidaBoraginaceaeMyosotisMyosotis laxa


An annual or biennial herb of wet ground, often growing in open places trampled by livestock or where there has been other disturbance. It occurs in marshes, fen-meadows, rush-pastures, and by lakes, ponds, canals, rivers and streams. Lowland to 530 m in Atholl (E. Perth) and 550 m in Co. Londonderry.



World Distribution

Circumpolar Boreo-temperate element, with a disjunct distribution.

© P. Shannon

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 7

Moisture (Ellenberg): 9

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 5


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.5

July Mean Temperature (Celsius): 14.5

Annual Precipitation (mm): 1085

Life form information

Height (cm): 40

Perennation - primary


Perennation - secondary

Biennial, including monocarpic perennials

Life Form - primary

Therophyte (annual land plant)

Life Form - secondary




Clonality - primary

Little or no vegetative spread

Distribution information

Count of 10km squares in Great Britain: 2409

Count of 10km squares in Ireland: 757

Count of 10km squares in the Channel Isles: 8

Atlas Change Index: 0.65

Weighted Changed Factor: 1

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