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Species · Flowering plants

Great Fen-sedge

Cladium mariscus

691Records since 2000
JulyPeak month
22Counties with records
Least ConcernIUCN Red List

When it is recorded

Jan1
Feb3
Mar2
Apr8
May28
Jun74
Jul225
Aug225
Sep19
Oct21
Nov2
Dec0

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Norfolk England386
2Cambridgeshire England167
3Isle of Anglesey Wales34
4Swansea Wales19
5Doncaster England9
6Fermanagh and Omagh Northern Ireland9
7Worcestershire England8
8Cornwall England7
9York England6
10Cheshire East England4
11Suffolk England3
12Argyll and Bute Scotland3
13Powys Wales3
14Darlington England3
15Highland Scotland2
594 England6 Scotland62 Wales10 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 22 counties in all.

About this species

Records since 2000
691
Peak month
July
Counties with records
22
IUCN Red List
Least Concern
Scientific name
Cladium mariscus
Group
Flowering plants
NBN Atlas records since 2000
1,288
Most recorded in
Norfolk, Cambridgeshire
Conservation designations
GB Red List (2001 IUCN criteria)
Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Poales
Family
Cyperaceae
Genus
Cladium
Name with authority
Cladium mariscus (L.) Pohl
Contributing datasets
24

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q158918 · GBIF 2731327