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Species · Flowering plants

Ray's Knotgrass

Polygonum oxyspermum

68Records since 2000
AugustPeak month
13Counties with records

When it is recorded

Jan0
Feb0
Mar0
Apr0
May0
Jun2
Jul9
Aug47
Sep4
Oct3
Nov0
Dec0

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

Where it is recorded

#CountyNationRecordsShare
1Norfolk England37
2North Ayrshire Scotland6
3Sefton England4
4Ceredigion Wales4
5Cumbria England3
6Newry, Mourne and Down Northern Ireland2
7Suffolk England1
8Dorset England1
9Highland Scotland1
10Cornwall England1
11South Ayrshire Scotland1
12Aberdeenshire Scotland1
13Portsmouth England1
52 England9 Scotland2 Wales2 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 13 counties in all.

About this species

Records since 2000
68
Peak month
August
Counties with records
13
Scientific name
Polygonum oxyspermum
Group
Flowering plants
NBN Atlas records since 2000
897
Conservation designations
GB Red List (2001 IUCN criteria)
Kingdom
Plantae
Phylum
Tracheophyta
Class
Magnoliopsida
Order
Caryophyllales
Family
Polygonaceae
Genus
Polygonum
Name with authority
Polygonum oxyspermum C.A.Mey. & Bunge

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · GBIF 8370223