Persicaria hydropiper

Tracheophyta MagnoliopsidaPolygonaceaePersicariaPersicaria hydropiper

Ecology

An annual of damp mud on the margins of ponds and lakes, canals, rivers and streams, or shallow depressions such as vehicle tracks and hoof-marks in woodland rides, around field gateways and in wet meadows. It is almost invariably in sites which are waterlogged in winter, often on base-poor soils and sometimes in partial shade. 0-505 m (Llyn Crugnant, Cards.).

Status

Native

World Distribution

Circumpolar Temperate element; widely naturalised outside its native range.

© M. Cotterill, IWNHAS

Broad Habitats

Light (Ellenberg): 7

Moisture (Ellenberg): 7

Reaction (Ellenberg): 6

Nitrogen (Ellenberg): 6

Salt Tolerance (Ellenberg): 0

January Mean Temperature (Celsius): 3.7

July Mean Temperature (Celsius): 14.8

Annual Precipitation (mm): 1093

Height (cm): 75

Perennation - primary

Annual

Life Form - primary

Therophyte (annual land plant)

Woodiness

Herbaceous

Clonality - primary

Little or no vegetative spread

Count of 10km squares in Great Britain: 2041

Count of 10km squares in Ireland: 740

Count of 10km squares in the Channel Isles: 9

Atlas Change Index: -0.41

Weighted Changed Factor: -3

Weighted Change Factor Confidence (90%)

20

JNCC Designations

NHMSYS0000461603