Hawaiian Ecosystems at Risk project (HEAR)

Digitaria insularis
(Poaceae)
cottongrass, feather-top grass, sourgrass

image of Digitaria insularis image of Digitaria insularis image of Digitaria insularis
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Species description or overview Taxonomy & nomenclature Impacts Control methods
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Species description or overview

Digitaria insularis as a weed in Hawaii View info about Adobe Acrobat PDF format
Information about Digitaria insularis as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).

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

Taxonomy & nomenclature

GRIN nomenclature info for Digitaria insularis
Nomenclatural information about Digitaria insularis is provided by USDA/ARS/NGRP/GRIN.

ITIS nomenclature info for Digitaria insularis
Nomenclatural information about Digitaria insularis is provided by ITIS.

IPNI nomenclature info for Digitaria insularis  new posting 
Nomenclatural information about Digitaria insularis is provided by The International Plant Names Index (IPNI).

Impacts

Digitaria insularis as a weed in Hawaii View info about Adobe Acrobat PDF format
Information about Digitaria insularis as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).

Digitaria insularis (Poaceae): species information from GCW
Information on Digitaria insularis as relevant to Pacific Islands is provided by the Global Compendium of Weeds (GCW).

Control methods

Digitaria insularis as a weed in Hawaii View info about Adobe Acrobat PDF format
Information about Digitaria insularis as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).

Images

Images of Digitaria insularis (Poaceae) (sourgrass)
Links to high-resolution free images of Digitaria insularis (Poaceae) (sourgrass) by Forest & Kim Starr (USGS) are available here.

Smithsonian Flora of the Hawaiian Islands info for Digitaria insularis
Smithsonian Flora of the Hawaiian Islands (Wagner, W. L., D. R. Herbst, and D. H. Lorence. 2005-. Flora of the Hawaiian Islands website. http://ravenel.si.edu/botany/pacificislandbiodiversity/hawaiianflora/index.htm [accessed Apr 2006])

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

Herbarium specimens

Images of voucher specimens for Digitaria insularis from the herbarium of Kalaupapa National Historical Park (Molokai, Hawaii, USA)
Images of voucher specimens of Digitaria insularis from the herbarium of Kalaupapa National Historical Park (Molokai, Hawaii, USA) are available online.

Distribution

Smithsonian Flora of the Hawaiian Islands info for Digitaria insularis
Smithsonian Flora of the Hawaiian Islands (Wagner, W. L., D. R. Herbst, and D. H. Lorence. 2005-. Flora of the Hawaiian Islands website. http://ravenel.si.edu/botany/pacificislandbiodiversity/hawaiianflora/index.htm [accessed Apr 2006])

Digitaria insularis as a weed in Hawaii View info about Adobe Acrobat PDF format
Information about Digitaria insularis as a weed in Hawaii is presented by the College of Tropical Agriculture and Human Resources (University of Hawai).

Full-text articles

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. ISSN: (unknown or N/A).

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