Oenanthe fistulosa

Tracheophyta MagnoliopsidaUmbelliferaeOenantheOenanthe fistulosa

Ecology

A perennial herb of damp or wet habitats, usually in areas of winter flooding. It occurs in meadows and pastures in the flood plains of rivers, in marshes and fens, and in emergent and fringing vegetation by rivers, streams, canals, ditches, lakes and ponds. It reproduces by seed, and spreads by stolons. In heavily grazed swards seed is produced virtually at ground level from secondary growth. Lowland.

Status

Native

World Distribution

European Temperate element.

© K.J. Walker, BSBI

Broad Habitats

Fen, marsh and swamp (not wooded)

Light (Ellenberg): 7

Moisture (Ellenberg): 9

Reaction (Ellenberg): 7

Nitrogen (Ellenberg): 6

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.9

July Mean Temperature (Celsius): 15.8

Annual Precipitation (mm): 771

Height (cm): 80

Perennation - primary

Perennial

Life Form - primary

Hemicryptophyte

Life Form - secondary

Perennial hydrophyte (perennial water plant)

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 804

Count of 10km squares in Ireland: 101

Count of 10km squares in the Channel Isles: 6

Atlas Change Index: -1.18

Weighted Changed Factor: -28

Weighted Change Factor Confidence (90%)

42

JNCC Designations

NBNSYS0000003689