Hierochloe odorata

Tracheophyta MagnoliopsidaPoaceaeHierochloeHierochloe odorata


A rhizomatous perennial herb occurring in a range of wetland habitats, including lakeside reed-beds, sedge swamps, Salix carr, river banks and wet meadows; also, in S.W. Scotland, at the base of coastal cliffs where streams emerge and along the upper edge of fringing saltmarshes. 0-300 m (Clearburn Loch, Selkirks.).



World Distribution

Circumpolar Boreal-montane element, with a continental distribution in W. Europe.

Broad Habitats

Light (Ellenberg): 6

Moisture (Ellenberg): 9

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 2


Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.4

July Mean Temperature (Celsius): 13.5

Annual Precipitation (mm): 1092

Life form information

Height (cm): 55

Perennation - primary


Life Form - primary




Clonality - primary

Rhizome far-creeping

Count of 10km squares in Great Britain: 18

Count of 10km squares in Ireland: 1

Count of 10km squares in the Channel Isles: 0

Atlas Change Index: 0.39

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