Sirhowy Hill Woodlands

Scientific name: Polygonum aviculare

Equal Leaved Knotgrass

Common Knotgrass is found along the seashore, on waste ground, fields and roadside verges, and in gardens. This widespread plant has tiny, pale pink flowers that are very easy to miss as they appear so close to the stem; it blooms from May to October. Common Knotgrass is also known as ‘Iron-grass’ because of its tough, wiry roots that make it especially hard to pull up from the ground.

"Polygonum aviculare by Dalgial, licensed under Creative Commons Attribution-Share Alike 2.0.

How to identify?

Common Knotgrass has oval, leathery leaves of varying sizes, and tiny pink flowers that arise where the leaves join the stem.

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Scientific Name

Polygonum aviculare

Other Wildlife