Hawaiian Ecosystems at Risk project (HEAR)

Acacia confusa
(Fabaceae)

Formosa acacia, Formosan koa

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Species description or overview Taxonomy & nomenclature Impacts Risk assessments Control methods Images
Distribution Where to see this species Books Full-text articles Experts Other resources

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Species description or overview

Information about Acacia confusa from IUCN's ISSG/GISD
online

Acacia confusa information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Acacia confusa from "Weeds of Hawaii's pastures and natural areas: an identification and management guide" (Motooka et al. 2003) is provided by the University of Hawaii's College of Tropical Agriculture and Human Resources (CTAHR).

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

Acacia confusa description and ecology from GISD (ISSG)
A species description and information about the ecology of Acacia confusa as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).

Acacia confusa information from "Common forest trees of Hawaii" View info about Adobe Acrobat PDF format
Information about Acacia confusa is presented with respect to this species being a forest tree in Hawaii. The information on this site is from the U.S. Department of Agriculture's (USDA's) 1989 publication by Little and Skolmen entitled "Common forest trees of Hawaii (native and introduced)."


Taxonomy & nomenclature

GRIN nomenclature info for Acacia confusa
Nomenclatural information about Acacia confusa is provided by USDA/ARS/NGRP/GRIN.

Acacia confusa information from the Smithsonian's Flora of the Hawaiian Islands
Information about Acacia confusa--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.

Acacia confusa information from ITIS
The Integrated Taxonomic Information System ITIS provides authoritative taxonomic information on Acacia confusa, as well as other plants, animals, fungi, and microbes of North America and the world.

IPNI nomenclature info for Acacia confusa
Nomenclatural information about Acacia confusa is provided by The International Plant Names Index (IPNI).


Impacts

Acacia confusa (Fabaceae): species information from GCW
Information on Acacia confusa as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).

Acacia confusa impact information from GISD (ISSG)
Impact information regarding Acacia confusa as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Risk assessments

Acacia confusa weed risk assessment for Hawaii-Pacific
Results of a weed risk assessment for Acacia confusa for the Hawaii-Pacific region are presented by the Hawaii-Pacific Weed Risk Assessment team.


Control methods

Acacia confusa information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Acacia confusa from "Weeds of Hawaii's pastures and natural areas: an identification and management guide" (Motooka et al. 2003) is provided by the University of Hawaii's College of Tropical Agriculture and Human Resources (CTAHR).

Acacia confusa management information from GISD (ISSG)
Management information for Acacia confusa as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).

Summaries of herbicide trials for pasture, range, and non-cropland weed control -1999 View info about Adobe Acrobat PDF format
Herbicide trials compare herbicides and methods of application on a variety of weedy species in Hawaii (University of Hawaii).

Herbicidal weed control methods for pastures and natural areas of Hawaii View info about Adobe Acrobat PDF format
This comprehensive review of herbicide application methods includes calculations for formulations, and appendices listing herbicides registered for use in Hawaii and their toxicities (University of Hawaii, 2002).


Images

Images of Acacia confusa (Fabaceae) (Formosa koa)
Links to high-resolution free images of Acacia confusa (Fabaceae) (Formosa koa) by Forest & Kim Starr (USGS) are available here.

Acacia confusa information from the Smithsonian Flora of the Hawaiian Islands
Information about Acacia confusa in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Acacia to Azadirachta images and weed risk assessment scores
Images of trees Acacia to Azadirachta, and their weed risk assessment scores, listed alphabetically, are from the University of Hawaii Forestry Extension.

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


Distribution

Acacia confusa information from the Smithsonian Flora of the Hawaiian Islands
Information about Acacia confusa in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Acacia confusa information from the Smithsonian's Flora of the Hawaiian Islands
Information about Acacia confusa--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.

Invasive species in the Pacific: A technical review and draft regional strategy (2000) View info about Adobe Acrobat PDF format
The status of invasive plants, vertebrates, arthropods, molluscs, and crustaceans, and options for a regional invasive species strategy for the South Pacific are presented in this series of articles from the South Pacific Regional Environment Programme, 2000.

Acacia confusa worldwide distribution from GISD (ISSG)
Worldwide distribution information about Acacia confusa is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Where to see this species

Kahoolawe (Kanaloa): natural areas of Hawaii
Forest and Kim Starr provide information about the island of Kahoolawe as a natural area in Hawaii. Links to additional resources are provided, as well as links to images of plant species found on Kahoolawe.


Books

Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide
Motooka, Philip, Luisa Castro, Duane Nelson, Guy Nagai, and Lincoln Ching. 2003. Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide. College of Tropical Agriculture and Human Resources (University of Hawaii--Manoa), Honolulu. 184 pp. color illus. ISBN: 1-929325-14-2.


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.

Invasive species in the Pacific: A technical review and draft regional strategy
South Pacific Regional Environmental Programme (SPREP). Sherley, Greg (ed.) . 2000. Invasive species in the Pacific: A technical review and draft regional strategy. Apia, Samoa: South Pacific Regional Environment Programme. ISBN: 982-04-0214-X.

Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide
Motooka, Philip, Luisa Castro, Duane Nelson, Guy Nagai, and Lincoln Ching. 2003. Weeds of Hawaii's Pastures and Natural Areas: An Identification and Management Guide. College of Tropical Agriculture and Human Resources (University of Hawaii--Manoa), Honolulu. 184 pp. color illus. ISBN: 1-929325-14-2.


Experts

Acacia confusa contacts from GISD (ISSG)
Contact information for experts on Acacia confusa as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


Other resources

Acacia confusa references from GISD (ISSG)
References regarding Acacia confusa as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).


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The Hawaiian Ecosystems at Risk (HEAR) project was historically 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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