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Polygonum maritimum (sea knotgrass)

Sea knotgrass is a coastal plant and is the rarest of the knotgrasses in Britain.
Flower and leaves of sea knotgrass

Polygonum maritimum (Photo: Sarah Griggs)

Species information

Common name: 

sea knotgrass

Conservation status: 

Rare

Habitat: 

Sandy beaches

Key Uses: 

Dressing for burns. Potential as an indicator species for climate change.

Known hazards: 

Not known

Taxonomy

Subclass: 
Superorder: 
Caryophyllanae
Order: 
Caryophyllales
Family: 
Polygonaceae
Genus: Polygonum

About this species

This species belongs to the knotgrass family, Polygonaceae. The common name, knotgrass, refers to the swollen nodes of the stems which appear as joints or knots.

Genus: 
Polygonum

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