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Species · Flowering plants

Canadian Waterweed

Elodea canadensis

6,360Records since 2000
AugustPeak month
83Counties with records
Least ConcernIUCN Red List

When it is recorded

Jan40
Feb20
Mar155
Apr124
May320
Jun673
Jul1,438
Aug1,506
Sep1,177
Oct386
Nov206
Dec53

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

Where it is recorded

#CountyNationRecordsShare
1Norfolk England472
2Lincolnshire England340
3Suffolk England258
4Cambridgeshire England255
5Kent England250
6Cumbria England210
7East Riding of Yorkshire England207
8Dorset England188
9Fermanagh and Omagh Northern Ireland181
10North Yorkshire England177
11Worcestershire England163
12Powys Wales128
13Devon England123
14Essex England120
15Somerset England120
5,241 England136 Scotland568 Wales192 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 83 counties in all.

About this species

Records since 2000
6,360
Peak month
August
Counties with records
83
IUCN Red List
Least Concern
Scientific name
Elodea canadensis
Group
Flowering plants
NBN Atlas records since 2000
11,189
Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Alismatales
Family
Hydrocharitaceae
Genus
Elodea
Name with authority
Elodea canadensis Michx.
Contributing datasets
48

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q159760 · GBIF 2865448