Hawaiian Ecosystems at Risk project (HEAR)

Hypericum perforatum
(Clusiaceae)

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

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Species description or overview

Hypericum perforatum ecology
Description and biology of Hypericum perforatum are provided by the Global Invasive Species Database, Invasive Species Specialist Group (ISSG).

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

Hypericum perforatum description and ecology from GISD (ISSG)
A species description and information about the ecology of Hypericum perforatum 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).


Taxonomy & nomenclature

GRIN nomenclature info for Hypericum perforatum
Nomenclatural information about Hypericum perforatum is provided by USDA/ARS/NGRP/GRIN.

Hypericum perforatum information from the Smithsonian's Flora of the Hawaiian Islands
Information about Hypericum perforatum--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.

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

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


Impacts

Hypericum perforatum (Clusiaceae): species information from GCW
Information on Hypericum perforatum as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).

Hypericum perforatum impact information from GISD (ISSG)
Impact information regarding Hypericum perforatum 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

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


Control methods

Hypericum perforatum management information from GISD (ISSG)
Management information for Hypericum perforatum 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).


Images

Images of Hypericum perforatum (Clusiaceae) (St. John's wort)
Links to high-resolution free images of Hypericum perforatum (Clusiaceae) (St. John's wort) by Forest & Kim Starr (USGS) are available here.

Hypericum perforatum information from the Smithsonian Flora of the Hawaiian Islands
Information about Hypericum perforatum in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

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


Distribution

Hypericum perforatum information from the Smithsonian Flora of the Hawaiian Islands
Information about Hypericum perforatum in Hawaii is available from the Smithsonian Flora of the Hawaiian Islands.

Hypericum perforatum information from the Smithsonian's Flora of the Hawaiian Islands
Information about Hypericum perforatum--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.

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


Books

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 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.

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.


Experts

Hypericum perforatum contacts from GISD (ISSG)
Contact information for experts on Hypericum perforatum 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

An open letter to "Seeds of Change"
Vitex rotundifolia information is available from the Hawaiian Ecosystems at Risk project (HEAR). Categorized links to a variety of resources are provided.

Hypericum perforatum references and links
References for Hypericum perforatum are provided by the Global Invasive Species Database, Invasive Species Specialist Group (ISSG).

Hypericum perforatum references from GISD (ISSG)
References regarding Hypericum perforatum 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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