Arable Knotgrass, Polygonum agrestinum Family: Polygonaceae
Arable Knotgrass     *     Polygonum agrestinum



Part of the Polygonum aviculare group.

Stems erect, ascending or sprawling with more than one main stem.
Heterophyllus, narrow leaves 7-15 x 2-3mm and 15-20(-30) x 3-4mm,
Internodes usually to 10(-20)mm. Perianth lobed nearly to base






Arable Knotgrass, Polygonum agrestinum

Arable Knotgrass, Polygonum agrestinum

Arable Knotgrass, Polygonum agrestinum

Arable Knotgrass, Polygonum agrestinum
Arable Knotgrass, Polygonum agrestinum
Photographs: Kingston Lacy, Dorset. September 2020

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