Knotgrass - Polygonum aviculare

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Description

Short to medium, erect or sprawling plant. Leaves lanceolate to oval larger on main stem. Ochrea silvery, ragged, few veined, concealing the leaf stalk. Flowers solitary, or in small clusters, greeninsh, with pink or whitish margins.

Identification difficulty
Habitat

A weed of waste places, roadsides and paths, bare ground etc.

When to see it

June to November.

Life History

Annual.

UK Status

Common in much of Britain except the far north.

VC55 Status

Very common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 598 of the 617 tetrads.

  • David Nicholls
    Fosse Meadows
    08 July 2011
  • Graham Calow
    Sapcote
    22 August 2014
  • Graham Calow
    Wykin
    12 June 2015
  • Graham Calow
    Granitethorpe Quarry, Sapcote
    26 June 2007
  • Graham Calow
    Leire Road, Frolesworth
    23 July 2015
  • Ron.stevens
    Broughton Astley
    22 July 2011

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species data profile ?

Species profile

Common names
Knotgrass agg., Knotgrass
Species group:
Wildflowers
Kingdom:
Plantae
Order:
Caryophyllales
Family:
Polygonaceae
Records on NatureSpot:
216
First record:
01/01/2005 (Harry Ball)
Last record:
14/09/2024 (Higgott, Mike)

Total records by month

% of records within its species group

10km squares with records

The latest images and records displayed below include those awaiting verification checks so we cannot guarantee that every identification is correct. Once accepted, the record displays a green tick.

In the Latest Records section, click on the header to sort A-Z, and again to sort Z-A. Use the header boxes to filter the list.

Latest images

Latest records

  • David Nicholls
    Charnwood Lodge
    01 September 2012
  • David Nicholls
    Kirby Muxloe Castle
    13 September 2013
  • Graham Calow
    Sapcote
    06 June 2013
  • Graham Calow
    Sapcote
    27 June 2008
  • Barbara Cooper
    Long Clawson
    21 June 2012
  • Graham Calow
    Sapcote
    06 June 2013
  • Alan Semper
    Harby School La path
    01 August 2012
  • Alan Semper
    Harby School La path
    01 August 2012
  • Graham Calow
    Clump Hill Fields, Broughton Astley
    05 October 2014