A perennial herb of open, damp, generally acidic sites, especially those subject to winter flooding. It occurs on sandy or gravelly tracks, on the shores of lakes or ponds, in short grassland, on eroding streamsides and occasionally on the coast in sand dunes or in turf in the upper zones of saltmarshes. 0-590 m (High Cup Nick, Westmorland).
I. setacea was mapped as `all records` in the 1962 Atlas. Analysis of the database reveals that most of the lowland losses have occurred since 1950, probably as a result of drainage. It is, however, a pioneer species of disturbed ground and can be easily overlooked.
Eurosiberian Temperate element; widely naturalised outside its native range.
Height (cm): 15
Perennation - primary
Perennation - secondary
Life Form - primary
Life Form - secondary
Comment on Life Form
Clonality - primary
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.