Equisetum giganteum

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Equisetum giganteum
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Scientific classification
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E. giganteum
Binomial name
Equisetum giganteum
Synonyms[1]
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  • Equisetum bolivianum Gand.
  • Equisetum martii Milde
  • Equisetum pyramidale Goldm.
  • Equisetum ramosissiumum Kunth non Desf.
  • Equisetum schaffneri Milde
  • Equisetum xylochaetum Mett.

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Equisetum giganteum, with the common name Southern giant horsetail, is a species of horsetail native to South America and Central America, from central Chile east to Brazil and north to Southern Mexico.

Description

It is one of the largest horsetails, growing 2–5 metres (6.6–16.4 ft) tall, exceeded only by the closely allied Equisetum myriochaetum (up to 8 metres (26 ft) relying on surrounding plants' support). The stems are the stoutest of any horsetail, 1–2 cm diameter (up to 3.5 cm diameter in some populations), and bear numerous whorls of very slender branches; these branches are not further branched, but some terminate in spore cones. Unlike some other horsetails, it does not have separate photosynthetic sterile and non-photosynthetic spore-bearing stems.

Populations from northern Chile with very stout stems up to 3.5 cm diameter have sometimes been treated as a separate species Equisetum xylochaetum,[2] but this is not widely regarded as distinct.

References

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  2. Equisetum xylochaetum at Flora Brasiliensis online

External links

  • Media related to Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons
  • fiu.edu: Giant Horsetails
  • (Portuguese) Lorenzi, H. & Souza, M. S. (2001). Plantas Ornamentais no Brasil: arbustivas, herbáceas e trepadeiras. Online ISBN 85-86714-12-7