Sparganium emersum

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Sparganium emersum
Sparganium emersum 11429.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
(unranked): Commelinids
Order: Poales
Family: Typhaceae
Genus: Sparganium
Species: S. emersum
Binomial name
Sparganium emersum
Rehmann

Sparganium emersum is a species of flowering plant in the cat-tail family known by the common names European bur-reed[1] and unbranched bur-reed.[2] It has a circumboreal distribution, occurring throughout the northern latitudes of Eurasia and North America. It is an aquatic plant, growing in shallow water bodies such as ponds and streams. It can become abundant at times. It is a perennial herb producing a floating stem up to 2 meters long. The leaves may be limp and floating or stiff and erect, emerging above the water surface. The leaves are flat and straplike, sometimes with a triangular, keeled base that can help distinguish it from the similar Sparganium angustifolium. It is monoecious, individual plants bearing both male and female inflorescences. These are spherical, the male inflorescence a ball of stamens and the female inflorescence a ball of developing fruits growing beneath the male spheres.

References[edit]

  1. ^ "Sparganium emersum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 24 November 2015. 
  2. ^ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-02-25. Retrieved 2014-10-17. 

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