Irish wildflowers

Photographs: Sherkin Island, Cork

Ray's Knotgrass
Polygonum oxyspermum subsp. raii
Glúineach ghlé
Family: Polygonaceae

Flowering time: June-November. Annual, biennial or short-lived perennial.

Clusters of tiny greenish-white flowers, red-edged. 5-petalled.
Glossy brown nut, longer than calyx.
Elliptical green-grey leaves, slightly rolled back edges.
Sprawling stems, often woody at base. Prostrate growth habit.

Coastal on sand and shingle beaches, usually above highest tide level.
Scattered distribution. Native.

Photographs above: Sherkin Island, Co.Cork. August 2007

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