- Polygonum oxyspermum Meyer & Bunge ex Ledeb. - Ray's Knotgrass - Polygonaceae
© Paul Hackney
© Graham Day
© Paul Hackney
(Map updated: March 2008)
A rather local plant, somewhat unpredictable in its occurrence, of sandy or shingly upper sea shores. The plant has small silvery-grey leaves on stems which sprawl across the ground.
Little brown pointed fruits of a characteristic shape are freely produced after the tiny pink flowers.
All names: Polygonum oxyspermum Meyer & Bunge ex Ledeb.; Polygonum raii Bab.; Polygonum roberti auct.