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Spartina anglica

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Title: Spartina anglica  
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Subject: Spartina, Pioneer species, Spartina alterniflora, Paleopolyploidy, Polyploid
Collection: Invasive Plant Species, Spartina
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Spartina anglica

Spartina anglica
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Poaceae
Genus: Spartina
Species: S. anglica
Binomial name
Spartina anglica
C.E.Hubb.

Spartina anglica (Common Cord-grass[1]) is a species of cordgrass that originated in southern England in about 1870. It is an allotetraploid species derived from the hybrid Spartina × townsendii, which arose when the European native cordgrass Spartina maritima (Small Cordgrass) hybridised with the introduced American Spartina alterniflora (Smooth Cordgrass).

It is a herbaceous perennial plant growing 0.4-1.3 m tall, yellowish green in spring and summer, and turning light brown in autumn and winter. The leaves are 20-60 cm long, and 1.5 cm broad at the base, tapering to a point. It produces flowers and seeds on only one side of the stalk. The flowers are a yellowish-green, turning brown by the winter.

Invasive problems

Spartina anglica was at first seen as a valuable new species for coastal erosion control, its dense root systems binding coastal mud and the stems increasing silt deposition, thereby assisting in land reclamation from the sea. As a result, it was widely planted at coastal sites throughout the British Isles, and has colonised large areas of tidal mudflats, becoming an invasive species. New colonies may take some time to become established, but once they do, vegetative spread by rhizomes is rapid, smothering natural ecosystems and preventing birds like waders from feeding. In some areas however, a natural dieback of unknown cause has reversed the spread, and artificial control is no longer necessary where this dieback has occurred.

It has also been introduced to Asia, Australia, New Zealand and North America, where it has proved to be a serious invasive species causing extensive damage to natural saltmarsh ecosystems in all areas.

References

  1. ^ "BSBI List 2007" (xls). Botanical Society of Britain and Ireland. Retrieved 2014-10-17. 
  • Spartina anglicaUK Joint Nature Conservation Committee:
  • English Nature: Spartina summary

See also

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