Hawaiian Ecosystems at Risk project (HEAR)

Conyza canadensis
(Asteraceae)

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

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Species description or overview

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


Taxonomy & nomenclature

GRIN nomenclature info for Conyza canadensis
Nomenclatural information about Conyza canadensis is provided by USDA/ARS/NGRP/GRIN.

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

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


Impacts

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


Images

Images of Conyza canadensis (Asteraceae) (horseweed, lani wela)
Links to high-resolution free images of Conyza canadensis (Asteraceae) (horseweed, lani wela) by Forest & Kim Starr (USGS) are available here.

Conyza canadensis information from the Smithsonian Flora of the Hawaiian Islands
Information about Conyza canadensis in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

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


Distribution

Conyza canadensis information from the Smithsonian Flora of the Hawaiian Islands
Information about Conyza canadensis in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.


Books

Weeds of the West
Whitson, Tom D., Larry C. Burrill, Steven A. Dewey, David W. Cudney, B.E. Nelson, Richard D. Lee, and Robert Parker. Whitson, Tom D. (ed.) . 2001. Weeds of the West. 9th ed. Laramie: University of Wyoming. ISBN: 0-941570-13-4.


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.

Annotated Checklist of the Vascular Plants on Midway Atoll, Hawaii.
Starr, F., K. Starr, and Loope L. 2006. Annotated Checklist of the Vascular Plants on Midway Atoll, Hawaii. An addendum to the 1999 Botanical Survey of Midway Atoll.

Botanical survey of Midway Atoll
Starr, F. and K. Martz. 1999. Botanical survey of Midway Atoll. In: 1995-1999 Baseline Surveys for Alien Species in Marine and Terrestrial Habitats on Midway Atoll National Wildlife Refuge. U.S. Fish and Wildlife Service, 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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