Sesbania tomentosa: Difference between revisions

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| ordo = [[Fabales]]
| ordo = [[Fabales]]
| familia = [[Fabaceae]]
| familia = [[Fabaceae]]
| subfamilia = [[Faboideae]]
| tribus = [[Sesbanieae]]<ref>{{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?33786 |title=Sesbania tomentosa |work=[[Germplasm Resources Information Network]] |publisher=[[United States Department of Agriculture]] |date=2007-06-06 |accessdate=2009-02-15}}</ref>
| genus = ''[[Sesbania]]''
| genus = ''[[Sesbania]]''
| species = '''''S. tomentosa'''''
| species = '''''S. tomentosa'''''
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| binomial_authority = [[William Jackson Hooker|Hook.]] & [[George Arnott Walker Arnott|Arn.]]
| binomial_authority = [[William Jackson Hooker|Hook.]] & [[George Arnott Walker Arnott|Arn.]]
}}
}}
'''Sesbania tomentosa''' or '''‘ohai''' is an endangered species of ''[[Sesbania]]'' endemic to the main Hawaiian Islands and [[Nihoa]] and [[Necker Island]]. Off-road vehicles, fires, grazing, and alien species competition have destroyed their habitat on the main islands, but they are still quite common on Nihoa and Necker. At least 2000 specimens grow on Nihoa, while Necker doesn't have nearly as many.
'''Sesbania tomentosa''' or '''‘ohai''' is an endangered species of [[flowering plant]] in the [[pea]] [[Family (biology)|family]], [[Fabaceae]], that is [[Endemism|endemic]] to the main [[Hawaiian Islands]] and [[Nihoa]] and [[Necker Island]]. Off-road vehicles, fires, grazing, and alien species competition have destroyed their habitat on the main islands, but they are still quite common on Nihoa and Necker. At least 2000 specimens grow on Nihoa, while Necker doesn't have nearly as many.


‘Ohai grows from sea level to elevations of 2700 feet. Over its wide range of habitats, it exhibits a broad variation of color and shape. Plants that grow on Nihoa have reddish-orange flowers and young leaflets that are relatively hairless. Necker plants have salmon to orange colored-flowers, and leaflets that are very hairy. On [[Molokai]], there is even a form that grows as a standing tree.
‘Ohai grows from sea level to elevations of {{convert|2700|ft|m}}. Over its wide range of habitats, it exhibits a broad variation of color and shape. Plants that grow on Nihoa have reddish-orange flowers and young leaflets that are relatively hairless. Necker plants have salmon to orange colored-flowers, and leaflets that are very hairy. On [[Molokai]], there is even a form that grows as a standing tree.


There is a prostrate form from Ka Lae (South Point) on the island of Hawai`i that has smooth leaves almost devoid of tomentum with a semi glaucous sheen.
There is a prostrate form from Ka Lae (South Point) on the island of Hawai`i that has smooth leaves almost devoid of tomentum with a semi glaucous sheen.


==References==
==References==
{{reflist}}
*{{cite book
*{{cite book
| last = Evenhuis
| last = Evenhuis
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[[nl:Sesbania tomentosa]]
[[nl:Sesbania tomentosa]]



[[Category:Flora of Hawaii]]
[[Category:Endemic flora of Hawaii]]
[[Category:Endemic flora of Hawaii]]
[[Category:Nihoa]]
[[Category:Nihoa]]

Revision as of 21:31, 15 February 2009

Sesbania tomentosa
File:Sesbania tomentosa.jpg
Sesbania tomentosa
Scientific classification
Kingdom:
Plantae
Division:
Magnoliophyta
Class:
Magnoliopsida
Order:
Fabales
Family:
Fabaceae
Subfamily:
Faboideae
Tribe:
Sesbanieae[1]
Genus:
Sesbania
Species:
S. tomentosa
Binomial name
Sesbania tomentosa

Sesbania tomentosa or ‘ohai is an endangered species of flowering plant in the pea family, Fabaceae, that is endemic to the main Hawaiian Islands and Nihoa and Necker Island. Off-road vehicles, fires, grazing, and alien species competition have destroyed their habitat on the main islands, but they are still quite common on Nihoa and Necker. At least 2000 specimens grow on Nihoa, while Necker doesn't have nearly as many.

‘Ohai grows from sea level to elevations of 2,700 feet (820 m). Over its wide range of habitats, it exhibits a broad variation of color and shape. Plants that grow on Nihoa have reddish-orange flowers and young leaflets that are relatively hairless. Necker plants have salmon to orange colored-flowers, and leaflets that are very hairy. On Molokai, there is even a form that grows as a standing tree.

There is a prostrate form from Ka Lae (South Point) on the island of Hawai`i that has smooth leaves almost devoid of tomentum with a semi glaucous sheen.

References

  1. ^ "Sesbania tomentosa". Germplasm Resources Information Network. United States Department of Agriculture. 2007-06-06. Retrieved 2009-02-15.
  • Evenhuis, Neal L. (ed.) (2004). Natural History of Nihoa and Necker Islands. Bishop Museum Bulletin in Cultural and Environmental Studies; No. 1. Honolulu, Hawaii: Bishop Museum Press. ISBN 1-58178-029-X. {{cite book}}: |first= has generic name (help); Unknown parameter |coauthors= ignored (|author= suggested) (help)
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