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Species · Flowering plants

Oxygen-weed

Lagarosiphon major

363Records since 2000
JulyPeak month
46Counties with records
Least ConcernIUCN Red List

When it is recorded

Jan9
Feb4
Mar7
Apr29
May33
Jun52
Jul69
Aug56
Sep41
Oct34
Nov5
Dec2

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

Where it is recorded

#CountyNationRecordsShare
1Sefton England30
2Gloucestershire England20
3Monmouthshire Wales16
4Worcestershire England15
5York England11
6Cornwall England10
7Swansea Wales10
8Gwynedd Wales8
9Devon England7
10Telford and Wrekin England7
11Powys Wales6
12Herefordshire, County of England5
13Lincolnshire England4
14Belfast Northern Ireland4
15Norfolk England3
248 England3 Scotland92 Wales8 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 46 counties in all.

About this species

Records since 2000
363
Peak month
July
Counties with records
46
IUCN Red List
Least Concern
Scientific name
Lagarosiphon major
Group
Flowering plants
NBN Atlas records since 2000
1,901
Kingdom
Plantae
Phylum
Tracheophyta
Class
Liliopsida
Order
Alismatales
Family
Hydrocharitaceae
Genus
Lagarosiphon
Name with authority
Lagarosiphon major (Ridl.) Moss

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q6471912 · GBIF 2865565