Hawaiian Ecosystems at Risk project (HEAR)

Ludwigia octovalvis
(Onagraceae)

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Species description or overview Taxonomy & nomenclature Impacts Images
Distribution Books Full-text articles  

"The seeds of this species originally could have been brought to Hawaii unintentionally by Polynesians on taro plants; however, they could just as easily have been brought by migratory water birds such as ducks. Hillebrand (1888) treated it as indigenous." "First collected [ed.: in Hawaii] (without definite locality) in 1794...." (Wagner et al. 1999. Manual of flowering plants of Hawaii. p. 998)  Ludwigia octovalvis is native to Pantropical. 


Species description or overview

Ludwigia octovalvis information from PIER
Information on Ludwigia octovalvis as relevant to Pacific Islands is provided by the Pacific Island Ecosystems at Risk project (PIER).


Taxonomy & nomenclature

GRIN nomenclature info for Ludwigia octovalvis
Nomenclatural information about Ludwigia octovalvis is provided by USDA/ARS/NGRP/GRIN.

ITIS nomenclature info for Ludwigia octovalvis
Nomenclatural information about Ludwigia octovalvis is provided by ITIS.

Ludwigia octovalvis information from the Smithsonian's Flora of the Hawaiian Islands
Information about Ludwigia octovalvis--including nomenclature and synonymy, and status and distribution in Hawaii--is provided by the "Flora of the Hawaiian Islands" website of the Smithsonian National Museum of Natural History. Links from this page include descriptive information about the species, as well as worldwide distributional information and general information about the genus.


Impacts

Ludwigia octovalvis (Onagraceae): species information from GCW
Information on Ludwigia octovalvis as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).


Images

Images of Ludwigia octovalvis (Onagraceae) (primrose willow)
Links to high-resolution free images of Ludwigia octovalvis (Onagraceae) (primrose willow) by Forest & Kim Starr (USGS) are available here.

Ludwigia octovalvis information from the Smithsonian Flora of the Hawaiian Islands
Information about Ludwigia octovalvis in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Ludwigia octovalvis images from PIER
Images of Ludwigia octovalvis provided by the Pacific Island Ecosystems at Risk project (PIER).


Distribution

Ludwigia octovalvis information from the Smithsonian Flora of the Hawaiian Islands
Information about Ludwigia octovalvis in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Ludwigia octovalvis information from the Smithsonian's Flora of the Hawaiian Islands
Information about Ludwigia octovalvis--including nomenclature and synonymy, and status and distribution in Hawaii--is provided by the "Flora of the Hawaiian Islands" website of the Smithsonian National Museum of Natural History. Links from this page include descriptive information about the species, as well as worldwide distributional information and general information about the genus.


Books

Weed handbook of Western Polynesia
Whistler, W. Arthur. 1983. Weed handbook of Western Polynesia. Eschborn: Deutsche Gesellschaft f#r Technische Zusammenarbeit (GTZ) GmbH. ISBN: 3-88085-227-8.


Full-text articles

Alien plant invasions in native ecosystems of Hawaii: Management and research
Stone, Charles P., Clifford W. Smith, and J. Timothy Tunison (eds.) . 1992. Alien plant invasions in native ecosystems of Hawaii: Management and research. Honolulu: University of Hawaii Cooperative National Park Resources Studies Unit. ISBN: 0-8248-1474-6.

Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest
Medeiros, A.C. 2004. Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest. Ph.D. Dissertation, Department of Zoology, University of Hawaii at Manoa, Honolulu.


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The Hawaiian Ecosystems at Risk (HEAR) project is currently funded by the Pacific Basin Information Node (PBIN) of the National Biological Information Infrastructure (NBII) through PIERC (USGS) with support from HCSU (UH Hilo). More details are available online. Pacific Basin Information Node (PBIN) National Biological Information Infrastructure (NBII)

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