Polygonum arenarium
type: Thing
alternate name: lesser red knotgrass
alternate name: European knotweed
description: species of plant
additional property: PropertyValue
  property ID: P18
  value: Polygonum arenarium pulchellum 149241462.jpg
additional property: PropertyValue
  property ID: P31
  value: taxon
additional property: PropertyValue
  property ID: P105
  value: species
additional property: PropertyValue
  property ID: P171
  value: Polygonum
additional property: PropertyValue
  property ID: P225
  value: Polygonum arenarium
additional property: PropertyValue
  property ID: P373
  value: Polygonum arenarium
additional property: PropertyValue
  property ID: P685
  value: 701368
additional property: PropertyValue
  property ID: P815
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  property ID: P830
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additional property: PropertyValue
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  value: kew-2572389
additional property: PropertyValue
  property ID: P1772
  value: POAR10
additional property: PropertyValue
  property ID: P1939
  value: 220854
additional property: PropertyValue
  property ID: P2036
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additional property: PropertyValue
  property ID: P2671
  value: /g/1n3dw5kyt
additional property: PropertyValue
  property ID: P2892
  value: C2809599
additional property: PropertyValue
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  value: POLAU
additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
  property ID: P3240
  value: NBNSYS0000033431
additional property: PropertyValue
  property ID: P3405
  value: 180730
additional property: PropertyValue
  property ID: P3746
  value: 3106
additional property: PropertyValue
  property ID: P3795
  value: POLARN
additional property: PropertyValue
  property ID: P5037
  value: urn:lsid:ipni.org:names:695381-1
additional property: PropertyValue
  property ID: P5055
  value: 10197865
additional property: PropertyValue
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additional property: PropertyValue
  property ID: P6104
  value: WikiProject Invasion Biology
additional property: PropertyValue
  property ID: P6105
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confidence:
  popularity graph score:
    score: 0.013
    score pct: 1
    tier: established
    components:
      sitelinks: 11
      sitelinks norm: 0.026
      unique citations: 25
      unique citations norm: 0.01
      monthly pageviews: 21
      monthly pageviews norm: 0.0
  sitelinks: 11
  unique citations: 25
  monthly pageviews: 21
  yearly pageviews: 35
  pageview trend:
    m: 2026-08
    v: 21
  pageview trend:
    m: 2026-07
    v: 3
  pageview trend:
    m: 2026-06
    v: 1
  pageview trend:
    m: 2026-05
    v: 3
  pageview trend:
    m: 2026-04
    v: 7
  popularity:
    sitelinks: 11
    max: 423
    pct: 2.6
  tier: established
claims:
  P18:
    value: Polygonum arenarium pulchellum 149241462.jpg
    source count: 0
    confidence: 0.0
  P31:
    value: Q16521
    source count: 0
    confidence: 0.0
    value label: taxon
  P105:
    value: Q7432
    source count: 0
    confidence: 0.0
    value label: species
  P171:
    value: Q271400
    source count: 0
    confidence: 0.0
    value label: Polygonum
  P225:
    value: Polygonum arenarium
    source count: 0
    confidence: 0.0
  P373:
    value: Polygonum arenarium
    source count: 0
    confidence: 0.0
  P685:
    value: 701368
    source count: 1
    confidence: 0.2
  P815:
    value: 20871
    source count: 1
    confidence: 0.2
  P830:
    value: 585389
    source count: 1
    confidence: 0.2
  P846:
    value: 5334315
    source count: 1
    confidence: 0.2
  P960:
    value: 26000060
    source count: 1
    confidence: 0.2
  P961:
    value: 695381-1
    source count: 1
    confidence: 0.2
  P1070:
    value: kew-2572389
    source count: 1
    confidence: 0.2
  P1772:
    value: POAR10
    source count: 1
    confidence: 0.2
  P1813:
    value:
      lang: mul
      text: P. arenarium
    source count: 1
    confidence: 0.2
  P1843:
    value:
      lang: cy
      text: y canclwm coch bach
    source count: 1
    confidence: 0.2

value:
  lang: en
  text: European knotweed
source count: 1
confidence: 0.2

value:
  lang: zh
  text: 沙生萹蓄（新拟）
source count: 1
confidence: 0.2

value: 220854
source count: 1
confidence: 0.2

value: 151450
source count: 1
confidence: 0.2

value: /g/1n3dw5kyt
source count: 0
confidence: 0.0

value: C2809599
source count: 1
confidence: 0.2

value: POLAU
source count: 0
confidence: 0.0

value: 29301
source count: 0
confidence: 0.0

value: 167225
source count: 0
confidence: 0.0

value: NBNSYS0000033431
source count: 1
confidence: 0.2

value: 180730
source count: 1
confidence: 0.2

value: 3106
source count: 0
confidence: 0.0

value: POLARN
source count: 0
confidence: 0.0

value: urn:lsid:ipni.org:names:695381-1
source count: 1
confidence: 0.2

value: 10197865
source count: 1
confidence: 0.2

value: 116440
source count: 0
confidence: 0.0

value: Q56241615
source count: 0
confidence: 0.0
value label: WikiProject Invasion Biology

value: 120791
source count: 0
confidence: 0.0

value: 11871
source count: 0
confidence: 0.0

value: 10183
source count: 0
confidence: 0.0

value: 177728
source count: 1
confidence: 0.2

value: 6445
source count: 1
confidence: 0.2

value: wfo-0000488330
source count: 1
confidence: 0.2

value: 58080
source count: 0
confidence: 0.0

value: 660516
source count: 1
confidence: 0.2

value: Q34800
source count: 1
confidence: 0.2
value label: Xinjiang

value: 2.142893
source count: 0
confidence: 0.0

value: 4L93G
source count: 0
confidence: 0.0

value: 24340/polygonum-arenarium
source count: 1
confidence: 0.2

value: Polygonum arenarium
source count: 1
confidence: 0.2

value: species/polygonum/arenarium
source count: 1
confidence: 0.2

value: 96298
source count: 1
confidence: 0.2

value: 7745
source count: 1
confidence: 0.2

source count: 0
confidence: 0.0

source: Taxonomy database of the U.S. National Center for Biotechnology Information
stated in qid: Q12159796
retrieved: 2015-11-13

source: Integrated Taxonomic Information System
stated in qid: Q82575
retrieved: 2016-07-29

source: Encyclopedia of Life
stated in qid: Q82486
retrieved: 2018-12-18

source: Global Biodiversity Information Facility
stated in qid: Q1531570
retrieved: 2015-05-19

source: Tropicos
stated in qid: Q2578548
retrieved: 2014-03-13

source: International Plant Names Index
stated in qid: Q922063
retrieved: 2014-03-13

source: The Plant List 1.1
stated in qid: Q15628808
retrieved: 2014-03-03

source: United States Department of Agriculture Plants Database
stated in qid: Q19636200
retrieved: 2015-03-21

source: Gwefan Llên Natur
stated in qid: Q23002367
retrieved: 2016-04-03

source: Dyntaxa
stated in qid: Q20425914
retrieved: 2015-06-27

source: African Plant Database
stated in qid: Q20862705
retrieved: 2015-08-25

source: UMLS 2023
stated in qid: Q118645236
retrieved: 2023-06-18

source: National Biodiversity Network
stated in qid: Q6970988
retrieved: 2016-10-06

source: Nederlands Soortenregister
stated in qid: Q2246990
retrieved: 2021-01-02

source: Plants of the World Online
stated in qid: Q47542613
retrieved: 2018-04-21

source: Interim Register of Marine and Nonmarine Genera
stated in qid: Q51885189
retrieved: 2018-06-15

source: European Nature Information System
stated in qid: Q374924
retrieved: 2018-11-26

source: eBiodiversity
stated in qid: Q12360981
retrieved: 2019-07-01

source: World Flora Online
stated in qid: Q77076820
retrieved: 2020-07-29

source: Open Tree of Life reference taxonomy version 3.2
stated in qid: Q105527638
retrieved: 2021-02-24

source: Flora Croatica Database
stated in qid: Q97219228
retrieved: 2024-04-22

source: Naturbasen
stated in qid: Q113107292

source: FloraVeg.EU
stated in qid: Q122629978

source: Go Botany
stated in qid: Q111544237

source: SERNEC
stated in qid: Q124259488

wikidata id: Q15596937
domain: taxon
level: standard
html url: https://4ort.xyz/entity/polygonum-arenarium
markdown url: https://4ort.xyz/entity/polygonum-arenarium.md
facts url summary: https://4ort.xyz/entity/polygonum-arenarium/facts.json
facts url standard: https://4ort.xyz/entity/polygonum-arenarium/facts.json
facts url full: https://4ort.xyz/entity/polygonum-arenarium/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-24T04:57:33.221182Z
entity updated at: 2026-05-03T18:28:36.114423+00:00Z
entity created at: 2026-04-10T23:46:46.786260+00:00Z