Carex otrubae
Tracheophyta
›Magnoliopsida›Cyperaceae›Carex›Carex otrubae
Ecology
A perennial of wet habitats, usually on heavy soils. It is found on the sides of streams and ponds, in ditches, swamps, wet lowland meadows and pastures, at the upper edge of saltmarshes, and, less commonly, on damp roadsides and hedge banks. In N. England and Scotland it is essentially a coastal plant. It generally grows in slightly drier conditions than C. vulpina, tending to avoid standing water. Lowland.
Status
Native
Trends
The overall distribution of C. otrubae is little changed since the 1962 Atlas, though loss of habitat through drainage has caused some local declines, for example in Dorset (Pearman, 1994).
World Distribution
Eurosiberian Southern-temperate element.
Broad Habitats
Fen, marsh and swamp (not wooded)
Light (Ellenberg): 6
Moisture (Ellenberg): 8
Reaction (Ellenberg): 7
Nitrogen (Ellenberg): 7
Salt Tolerance (Ellenberg): 2
January Mean Temperature (Celsius): 4
July Mean Temperature (Celsius): 15.3
Annual Precipitation (mm): 939
Height (cm): 100
Perennation - primary
Perennial
Life Form - primary
Hemicryptophyte
Woodiness
Herbaceous
Clonality - primary
Tussock-forming graminoid, may slowly spread
Count of 10km squares in Great Britain: 1636
Count of 10km squares in Ireland: 405
Count of 10km squares in the Channel Isles: 9
Atlas Change Index: -0.14
Weighted Changed Factor: 2
Weighted Change Factor Confidence (90%)
17
JNCC Designations
NBNSYS0000002467