When it is recorded
Jan0
Feb2
Mar0
Apr0
May8
Jun78
Jul182
Aug322
Sep227
Oct100
Nov7
Dec2
GBIF records by month, 2000–2025 (all years combined).
Where it is recorded
| # | County | Nation | Records | Share |
|---|---|---|---|---|
| 1 | Worcestershire | England | 241 | |
| 2 | Oxfordshire | England | 83 | |
| 3 | Essex | England | 48 | |
| 4 | Herefordshire, County of | England | 30 | |
| 5 | West Berkshire | England | 27 | |
| 6 | Dudley | England | 21 | |
| 7 | Portsmouth | England | 20 | |
| 8 | Telford and Wrekin | England | 19 | |
| 9 | North Tyneside | England | 17 | |
| 10 | Highland | Scotland | 13 | |
| 11 | Surrey | England | 12 | |
| 12 | Cambridgeshire | England | 11 | |
| 13 | Norfolk | England | 11 | |
| 14 | Sefton | England | 11 | |
| 15 | Argyll and Bute | Scotland | 11 |
1,133 England42 Scotland13 Wales
Records per county (GADM level 2) and per nation; one record can count towards several areas. 49 counties in all.
About this species
- Records since 2000
- 1,210
- Peak month
- August
- Counties with records
- 49
- Scientific name
- Polygonum arenastrum
- Also known as
- Equal-leaved Knotgrass
- Group
- Flowering plants
- NBN Atlas records since 2000
- 18,557
- Most recorded in
- Worcestershire, Oxfordshire
- Conservation designations
- GB Red List (2001 IUCN criteria)
- Kingdom
- Plantae
- Phylum
- Tracheophyta
- Class
- Magnoliopsida
- Order
- Caryophyllales
- Family
- Polygonaceae
- Genus
- Polygonum
- Name with authority
- Polygonum arenastrum Boreau
- Contributing datasets
- 21
Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q4280447 · GBIF 5334294