When it is recorded
Jan0
Feb1
Mar1
Apr3
May21
Jun114
Jul148
Aug184
Sep122
Oct6
Nov2
Dec0
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Gwynedd | Wales | 93 | |
| 2 | Highland | Scotland | 82 | |
| 3 | Pembrokeshire | Wales | 67 | |
| 4 | Powys | Wales | 50 | |
| 5 | Fermanagh and Omagh | Northern Ireland | 35 | |
| 6 | Scottish Borders | Scotland | 34 | |
| 7 | Cumbria | England | 32 | |
| 8 | Argyll and Bute | Scotland | 28 | |
| 9 | Denbighshire | Wales | 25 | |
| 10 | Ceredigion | Wales | 24 | |
| 11 | Carmarthenshire | Wales | 24 | |
| 12 | Worcestershire | England | 15 | |
| 13 | Monmouthshire | Wales | 14 | |
| 14 | Mid and East Antrim | Northern Ireland | 12 | |
| 15 | Wrexham | Wales | 10 |
69 England164 Scotland323 Wales73 Northern Ireland
Records per county (GADM level 2) and per nation; one record can count towards several areas. 35 counties in all.
About this species
- Records since 2000
- 646
- Peak month
- August
- Counties with records
- 35
- IUCN Red List
- Least Concern
- Scientific name
- Myriophyllum alterniflorum
- Group
- Flowering plants
- NBN Atlas records since 2000
- 5,620
- Most recorded in
- Gwynedd, Highland, Pembrokeshire, Powys
- Conservation designations
- GB Red List (2001 IUCN criteria)
- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Magnoliopsida
- Order
- Saxifragales
- Family
- Haloragaceae
- Genus
- Myriophyllum
- Name with authority
- Myriophyllum alterniflorum DC.
- Contributing datasets
- 27
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q159571 · GBIF 5361773