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Ray's Knotgrass

Polygonum oxyspermum

Please keep in mind that it is illegal to uproot a plant without the landowner's consent and care should be taken at all times not to damage wild plants. Wild plants should never be picked for pleasure and some plants are protected by law.
For more information please download the BSBI Code of Conduct PDF document.

Plant Data

Flowering Months:
JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC
Order:
Caryophyllales
Family:
Polygonaceae (Dock)
Type:
Flower
Life Cycle:
Annual or Perennial
Maximum Size:
80 centimetres spread
Habitats:
Beaches, sand dunes, seaside.

Flower:
֍
Variable in colour, 5 petals
 
The tiny green, white or pink flowers appear in auxiliary clusters of 2 to 6. Flowers have 5 petals (actually tepals).
Fruit:
Shiny, 3-sided, chestnut brown nutlets which develop immediately after flowering. The nutlets protrude out of the dead flowers.
Leaves:
More compact and larger than Common Knotgrass. The narrow leaves have pale, greyish-brown tips. Each leaf is up to 3.5cm in length and has between 3 to 6 unbranched veins.
Frequency (UK):
Occasionally seen  
Similar Species:
Distribution Map

Reproduced by kind permission of the BSBI.

Click to open an Interactive Map