Hawaiian Ecosystems at Risk project (HEAR)

Ageratum conyzoides
(Asteraceae)

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

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Species description or overview

Ageratum conyzoides information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Ageratum conyzoides 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).

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


Taxonomy & nomenclature

GRIN nomenclature info for Ageratum conyzoides
Nomenclatural information about Ageratum conyzoides is provided by USDA/ARS/NGRP/GRIN.

Ageratum conyzoides information from the Smithsonian's Flora of the Hawaiian Islands
Information about Ageratum conyzoides--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.

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

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


Impacts

Ageratum conyzoides (Asteraceae): species information from GCW
Information on Ageratum conyzoides as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).


Control methods

Ageratum conyzoides information from CTAHR (Motooka et al.) View info about Adobe Acrobat PDF format
Information about Ageratum conyzoides 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).

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 Ageratum conyzoides (Asteraceae) (ageratum, maile honohono, billygoat weed)
Links to high-resolution free images of Ageratum conyzoides (Asteraceae) (ageratum, maile honohono, billygoat weed) by Forest & Kim Starr (USGS) are available here.

Ageratum conyzoides information from the Smithsonian Flora of the Hawaiian Islands
Information about Ageratum conyzoides in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

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


Distribution

Ageratum conyzoides information from the Smithsonian Flora of the Hawaiian Islands
Information about Ageratum conyzoides in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Ageratum conyzoides information from the Smithsonian's Flora of the Hawaiian Islands
Information about Ageratum conyzoides--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.


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

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.

Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives)
Veitch, C.R. and M.N. Clout (eds.) . 2002. Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives). IUCN SSC Invasive Species Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK. vii + 414pp. ISBN: 2-8317-0682-3.

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.

Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives)
Veitch, C.R. and M.N. Clout (eds.) . 2002. Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives). IUCN SSC Invasive Species Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK. vii + 414pp. ISBN: 2-8317-0682-3.

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.

Maui Offshore Islet Botanical Survey
Starr, F., K. Starr, and Wood K. 2006. Maui Offshore Islet Botanical Survey. Report prepared for State Department of Land and Natural Resources and the Offshore Islet Restoration Committee, Honolulu, Hawaii.

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.

Oahu Offshore Islets Botanical Survey
Starr, F. and K. Starr. 2006. Oahu Offshore Islets Botanical Survey. Report prepared for State Department of Land and Natural Resources and the Offshore Islet Restoration Committee, Honolulu, Hawaii.

Revised List of Hawaiian Names of Plants Native and Introduced with Brief Descriptions and Notes as to Occurrence and Medicinal or Other Values
Gon III, Samuel M. Ohukaniohia. 2008. Revised List of Hawaiian Names of Plants Native and Introduced with Brief Descriptions and Notes as to Occurrence and Medicinal or Other Values, by Joseph F. Rock Consulting Botanist, Board of Agriculture and Forestry Honolulu, Hawaii, 1920; transcribed and annotated by Samuel M. Ohukaniohia Gon III. Ethnobotany Research & Applications 6:405-442.


Other resources

Phenology, reproductive potential, seed dispersal and predation, and seedling establishment of three invasive plant species in a Hawaiian rain forest
After rain forest of Haleakala National Park was fenced in the late 1980s, native vegetation responded vigorously yet three problematic plant invaders (Clidemia hirta, Hedychium gardnerianum, and Psidium cattleianum) continued to spread unabated and became of great concern to Park managers. This contribution provides a quantitative assessment of crucial life history junctures (quantitative phenology, reproductive potential, seed dispersal, seed predation, seedling establishment) to assist Haleakala NP and other managers of Hawaiian rain forests. It also provides detailed information for potentially identifying key characteristics in prevention, rapid response, and prioritization of incoming invasive species. (This document is the 2004 Ph.D. dissertation of Dr. Arthur C. Medeiros for the Department of Zoology at the University of Hawaii.)


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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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