Sesbania tomentosa: Difference between revisions

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| image = Sesbania_tomentosa.jpg
| image = Sesbania_tomentosa.jpg
| image_width = 200px
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| image_caption = ''Sesbania tomentosa''
| image_caption =
| regnum = [[Plant]]ae
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| divisio = [[Flowering plant|Magnoliophyta]]
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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.]]
}}
}}
'''{{okina}}Ohai''' ('''''Sesbania tomentosa''''') is an endangered species of [[flowering plant]] in the [[pea]] [[Family (biology)|family]], [[Fabaceae]], that is [[Endemism|endemic]] to the main [[Hawaiian Islands]] as well as [[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.
'''{{okina}}Ohai''' ('''''Sesbania tomentosa''''') is an endangered species of [[flowering plant]] in the [[pea]] [[Family (biology)|family]], [[Fabaceae]], that is [[Endemism|endemic]] to the main [[Hawaiian Islands]] as well as [[Nihoa]] and [[Necker Island]]. It inhabits [[Hawaiian tropical low shrublands|low shrublands]] and, rarely, [[Hawaiian tropical dry forests|dry forests]],<ref>{{cite web |url=http://www.state.hi.us/dlnr/dofaw/cwcs/files/Flora%20fact%20sheets/Ses_tom%20plant%20NTBG_W.pdf |title={{okina}}Ohai |publisher=State of Hawai{{okina}}i |accessdate=2009-03-10}}</ref> at elevations from sea level to {{convert|2500|ft|m}}.<ref name="Bishop">{{cite web |url=http://www2.bishopmuseum.org/ethnobotanydb/resultsdetailed.asp?search=ohai |title=ohai, ohai |work=Hawaiian Ethnobotany Online Database |publisher=[[Bernice P. Bishop Museum]] |accessdate=2009-03-09}}</ref> Associated native plant species include aki{{okina}}aki (''[[Sporobolus virginicus]]''), ilima (''[[Sida fallax]]''), naupaka kahakai (''[[Scaevola]] [[Scaevola sericea|sericea]]''), and pili (''[[Heteropogon contortus]]'').<ref>{{cite web |url=http://www.centerforplantconservation.org/ASP/CPC_ViewProfile.asp?CPCNum=3946 |title=Sesbania tomentosa |work=CPC National Collection Plant Profile |publisher=Center for Plant Conservation |accessdate=2009-03-10}}</ref> 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.


{{okina}}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. A form that grows as a standing tree exists on [[Molokai|Moloka{{okina}}i]]. {{okina}}Ohai grows as a prostrate shrub with semi-glaucous leaves devoid of tomentum on the southernmost tip of the [[Hawaii (island)|island of Hawai{{okina}}i]], [[Ka Lae]].
{{okina}}Ohai is highly [[Polymorphism (biology)|polymorphic]], exhibiting broad variations in 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. A form that grows as a standing tree exists on [[Molokai|Moloka{{okina}}i]]. {{okina}}Ohai grows as a prostrate shrub with semi-glaucous leaves devoid of tomentum on the southernmost tip of the [[Hawaii (island)|island of Hawai{{okina}}i]], [[Ka Lae]].


==References==
==References==
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[[nl:Sesbania tomentosa]]
[[nl:Sesbania tomentosa]]


==External links==
*{{cite web |url=http://www2.hawaii.edu/~eherring/hawnprop/ses-tome.htm |title=Sesbania tomentosa |work=Hawaiian Native Plant Propagation Database |publisher=[[University of Hawaii at Manoa|University of Hawai{{okina}}i at Mānoa]] |accessdate=}}
*{{cite news |url=http://archives.starbulletin.com/2005/09/30/features/garden.html |title={{okina}}Ohai leaf tips give off sweet scent |work=[[Honolulu Star-Bulletin]] |first=Rick |last=Barboza |volume=10 |issue=273 |date=2005-09-03}}


[[Category:Flora of Hawaii]]
[[Category:Flora of Hawaii]]

Revision as of 21:49, 10 March 2009

ʻOhai
File:Sesbania tomentosa.jpg
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

ʻOhai (Sesbania tomentosa) is an endangered species of flowering plant in the pea family, Fabaceae, that is endemic to the main Hawaiian Islands as well as Nihoa and Necker Island. It inhabits low shrublands and, rarely, dry forests,[2] at elevations from sea level to 2,500 feet (760 m).[3] Associated native plant species include akiʻaki (Sporobolus virginicus), ilima (Sida fallax), naupaka kahakai (Scaevola sericea), and pili (Heteropogon contortus).[4] 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.

ʻOhai is highly polymorphic, exhibiting broad variations in 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. A form that grows as a standing tree exists on Molokaʻi. ʻOhai grows as a prostrate shrub with semi-glaucous leaves devoid of tomentum on the southernmost tip of the island of Hawaiʻi, Ka Lae.

References

  1. ^ "Sesbania tomentosa". Germplasm Resources Information Network. United States Department of Agriculture. 2007-06-06. Retrieved 2009-02-15.
  2. ^ "ʻOhai" (PDF). State of Hawaiʻi. Retrieved 2009-03-10.
  3. ^ "ohai, ohai". Hawaiian Ethnobotany Online Database. Bernice P. Bishop Museum. Retrieved 2009-03-09.
  4. ^ "Sesbania tomentosa". CPC National Collection Plant Profile. Center for Plant Conservation. Retrieved 2009-03-10.
  • 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)

External links

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